This is more of an advice seeking rant. I've recently been promoted to Team Leader of my team but mostly because of circumstances. The previous team leader left for a start-up and I've been somehow the acting Scrum Master of the team for the past months (although our company sucks at Scrum generally speaking) and also having the most time in the company. However I'm still the youngest I'm my team so managing the actual team feels a bit weird and also I do not consider myself experienced enough to be a Technical lead but we don't have a different position for that.

Below actions happen in the course of 2-3 months.

With all the things above considered I find myself in a dire situation, a couple of months ago there were several Blocker bugs opened from the Clients side / production env related to one feature, however after spending about a month or so on trying to investigate the issues we've come to the conclusion that it needs to be refactorised as it's way too bad and it can't be solved (as a side note this issue has also been raised by a former dev who left the company). Although it was not part of the initial upcoming version release it was "forcefully" introduced in the plan and we took out of the scope other things but was still flagged as a potential risk. But wait..there's more, this feature was part of a Java microservice (the whole microservice basically) and our team is mostly made of JS, just one guy who actually works as a Java dev (I've only done one Java course during uni but never felt attracted to it). I've not been involved in the initial planning of this EPIC, my former TL was an the Java guy. Now during this the company decides that me and my TL were needed for a side project, so both of us got "pulled out" of the team and move there but we've also had to "manage" the team at the same time. In the end it's decided that since my TL will leave and I will take leadership of the team, I get "released" from the side project to manage the team. I'm left with about 3 weeks to slam dunk the feature.. but, I'm not a great leader for my team nor do I have the knowledge to help me teammate into fixing this Java MS, I do go about the normal schedule about asking him in the daily what is he working on and if he needs any help, but I don't really get into much details as I'm neither too much in sync with the feature nor with the technical part of Java. And here we are now in the last week, I've had several calls with PSO from the clients trying to push me into giving them a deadline on when will it be fixed that it's very important for the client to get this working in the next release and so on, however I do not hold an answer to that. I've been trying to explain to them that this was flagged as a risk and I can't guarantee them anything but that didn't seem to make them any happier. On the other side I feel like this team member has been slacking it a lot, his work this week would barely sum up a couple of hours from my point of view as I've asked him to push the branch he's been working on and checked his code changes. I'm a bit anxious to confront him however as I feel I haven't been on top of his situation either, not saying I was uninvolved but I definetly could have been a better manager for him and go into more details about his daily work and so on.

All in all there has been mistakes on all levels(maybe not on PSO as they can't really be held accountable for R&D inability to deliver stuff, but they should be a little more understandable at the very least) and it got us into a shitty situation which stresses me out and makes me feel like I've started my new position with a wrong step.

I'm just wondering if anyone has been in similar situations and has any tips or words of wisdom to share. Or how do you guys feel about the whole situation, am I just over stressing it? Did I get a good analysis, was there anything I could have done better? I'm open for any kind of feedback.