@JanVladimirMostert covered most of the things, but I would like to add a few more points. Here is my opinion :
Usually, the first job offers a lot of learning opportunities and you should leverage this. Learn from your seniors and take feedback positively.
You know what everybody likes in a developer? The answer is "Coachability". Senior developers, architects, managers etc aren't always jerks. You should try to learn as much as possible from them and listen to what they are saying. You will become a great developer if you take feedback in the right spirit and fix your weaknesses.
There are more.. but these are the important ones I can think of now.
You should keep learning. This is how you will stay relevant in work industry.
In my previous job, one of the architects told me that frameworks/ technologies come and go... You should not pick a technology just because all the cool kids are using it. May be their use case is different. The proof is always in the code. Use multiple technologies, evaluate them and make an informed decision. As Jan said, have passion and get things done. You will be hired because of your passion and smartness, not because you know technology X.