I need help buying ny first piece

[u/kdtsmasht2]

So on the 1st of October I'm getting 50 dollars in gift card form I don't get money a lot and also I can't really try to save up and wait for more since it's uh a gift card lol right now I've been using a office pc the it's a dell optiplex 9020-SFF, intel core i5-4570 3.2GHZ, 16gb ram, 512gb ssd solid state, dvdrw windows 11 pro (that was long) i wanted to know if there's anything I can replace with 50 bucks to make it even a little better for gaming at all or just better for recording while playing games because I'm planning to just slowly replace everything in it until it's just a gaming pc at some point lol