!rant && anxiousness

So, I applied for several jobs because I started hating my current job and the boss.
On my CV and motivation letter I really only wrote stuff I am confident enough with to show if someone would ask me.
I only have 2.5 years of work experience and a B.Sc.

In 3 days I already got 2 answers out of 3 companys, I applied at, who would like to meet me.
Tomorrow is the first meeting.
Now I am anxious that I might still not live up to my CV or motivation letter although I know that I use the techniques mentioned there daily.
I fear that I might be not as good as they might think now, even feel like I know nothing at all.

I never really believed I would fall in the imposter syndrome trap, but here it is.

Any advice? I really want to find another job and I don't want to screw up the interview because I am too nervous.

I'm just finishing my bachelor's degree in computer science in Germany. I love programming, especially for Android. I am working on a really cool note-taking app for my bachelor thesis and I love. A few weeks ago I started looking for jobs, I thought this would be easy. Why is this not easy?! Does no company need help with developing an app?!?! I googled jobs and opened the first few pages on the browser then I chose a city in Switzerland because I read that's where developers make the most money. Then I had to write a CV, what the fuck am I supposed to write in the CV?! So I wrote what languages I had dealt with during my studies and I wrote that I now speak German English and Hebrew. I had to upload the CV for EVERY SINGLE COMPANY and sometimes I had to write a cover letter for a companies I don't even know much about. WHY IS THIS SO ANNOYING!!!
I'm the last few weeks I've been getting emails rejecting my application, such a waste of time. I would love to work with people I'm just so bored sitting at home all day without much motivation to program alone, I need company and a company to pay me. I've already wasted a few months and I just can't believe that the market is so terribly organised. I could be getting so much work done, all I need is people who are a little bit motivated! I'm just so frustrated that everything works so slowly in this market...I even tried looking online for people who just want to talk about programming Android apps, NADA I just couldn't find anything... Well that's it if you have a job offer for me just hit me up I'll do anything...tiny.cc/chagai is where you can find my contact information I will literally consider even working in North Korea I just don't care where I work..

It's been two months since I've left my previous job, after 1.5 years. I never had the feeling my boss trusted his dev team, since he was checking up on us regularly, even though we had planned out a sprint and work for us was "clear". I say "clear", because every single feature on this project was pretty much half-baked, since they were just ideas our boss/PO (same person) on the spot and were labeled as "the next big thing" without every properly writing them out as user stories. Every demo came with a bunch of criticism, because features weren't implemented "as he imagined", because what do you know, the user stories weren't properly described anyway. Bringing that up as counter-argument also made him angry every time, so that didn't help much either. The launch of the platform was also postponed every time because of vague reasons, so that didn't make the project any more interesting either.
It took a while before I got sick of this of this pretty hopeless situation and toxic environment. Mind you, it was my first job since I graduated, so I was a bit naive thinking the working environment would improve and aforementioned company issues would be resolved over time. Eventually, I ran out of patience and motivation, so I finally bit the bullet and handed in my resignation letter.
From that moment, I at least had an end in sight, since I was still obliged to do my four-week notice period, which felt like an eternity. The borderline childish and sociopathic behaviour of my boss didn't make it any better (e.g. checking up on me even more, more mistrust, randomly accusing me of ruining the working atmosphere because I shared a meme with a colleague of mine and didn't involve him, going lunching with all of my colleagues but explicitly asking me to stay at work, ...). Being forced to work from home the last 2 weeks as part of the country's lockdown measures at least helped my sanity a bit, since I had the comfort of my home office and not the frequent "looking over your shoulders to check if you're still working".
By the last day of my notice period, I was bitter, exhausted, lost confidence in my skills and had completely lost my joy of being a developer. I had to physically meet with my boss one more time to hand in the company laptop. He thanked me for my service and said that we'd keep in touch. I hope I won't keep that promise (he made a lot of false promises before, too), because I'd rather never encounter him ever again. It felt like a huge relief to finally close the door of this bad experience behind me for good.

Now, 2 months later, I've got a new job and rediscovered my joy for coding, mostly thanks to the complete opposite of a toxic environment here, management which actually has respect and faith in me and a challenging but fun project. My mental state has made a complete turnaround compared to two months ago. I have absolutely no regrets of switching jobs. If only I had made that decision sooner.