Hey ElieAC,
It's normal to feel that way in uni, you are far from the only one. Still, just because it's normal doesn't mean it can't feel unpleasant. It's this time of life where you really start to be on your own and take your first steps into adulthood, so please be easy on yourself. In my opinion, you're already doing very well. Two jobs, uni, and living on your own is nothing to sneeze at, those are all great accomplishments.
From the sounds of it, you are a busy person and work hard. In my opinion, being able to do that is a skill in itself. Skill can be a subjective thing, and other people around you may have different perceptions of what you're good at. I used to take photos I thought were just decent, but other people really liked them surprisingly. You may also have some old forgotten skills from childhood that just haven't had the right time or place to reappear. How skilled you are is a matter of perception. There are famous artists who think their art looks horrible, and kids drawing stick figures who think they're the best. There is no point where it's "enough" and suddenly you are passionate, because finally it's "good". What you do already is good.
Hype yourself up and celebrate the things that go well for you. In school, all that is built in. At first while reading your post I personally didn't relate to wanting to get A's - but now that I think about it, an A is the result of hard work. It's a real accomplishment. So not getting A's would of course be a cause for worry. Once uni is over, so are grades, so of course there is stress in not knowing where you will go quite yet. Feeling accomplished is pretty important- it's how the brain works to complete tasks- to get that dopamine.
Feeling accomplished in what you do is not some secret sauce passed down from the school system, or a rarity, it is something you can feel right at this moment in yourself. Even if it sounds cheesy, please celebrate yourself, that is my advice. An extraordinary accomplishment does not always equal feeling extraudinarily accomplished. Small tasks can feel rewarding in themselves, so take advantage of that.
I'm not asking for you to settle, more like it's easier to figure it all out if you aren't simultaneously expecting a specific feeling to arise from it. Feelings change all the time.
Last thing, working two jobs and uni might be making time appear to go faster because you're busy. If you get the chance to take a break at all, that might help. All the best!!
