Is it usual to not be allowed to use headphones/earbuds at work?

We cant at our offfice atleast. The explination was that IF clients come by the offfice it looks like we are having a lan party! 😂

Checking the generosity of those basking in the glory of long weekend to bump me up for a stress ball.

Had a massive argument at home today and cant even concentrate on coding :/

Can someone help me how to focus for 6 straight hours/day until the end of this month? Got 1 last exam left till i graduate with comp. science degree. I have to study databases but only theory. And i fucking hate reading text. I hate theory. I like solving problems analytically and theory is my weakness.

I read theory shit for a few mins and then distract myself with mobile games and tiktok for a few hours... I cant concentrate studying this shit...

How do i forcefully focus.

Can someone suggest me the best app that actually works to help me focus or something? Or some yt sound waves music?

I never tried a cigarette in my life. However the complexity of the project im working on ALL ALONE and im going all in on it and giving it my all, working alone on a project thats supposed to work at least 10 developers, is causing me excessive damage of stress. Cigarettes might be the solution. Not sure about alcohol cause usually it kills brain cells and id become even dumber as fuck. Plus i need full focus on this bullshit. Need Concentration. Cant concentrate if im under extreme levels of stress and pressure. I must be fast with this and finish the project this year 2023. I dont know what scares me the most: the level of complexity or the fact im not close to finishing it. What do you think is cigarette gonna solve my problem ?