Definately don't give up, the uke is a fun instrument to mess around with, I can't really strum & sing, & I've been messing around here for almost two years now, but I enjoy myself, & the others let me join in with them.
There are some seriously good players & singers on these forums, but there are a lot like me who just enjoy ourselves, come & be one of us, you'll find us in the Seasons threads.
Feel free to take a look at my YT uke channel to see how bad I was when I started, it's one of the reasons I put it there, to show newbies that you will improve, it just takes a little bit of time & some practicing.
Here's my very first one - I'm not ashamed of it because I had to start somewhere, & this is where.
Edit: We can give you pointers to get you going, as said above, learn 3 chords, practice changing between them, pick a simple song that uses them, practice it, record yourself, (keep the recording), practice some more, record yourself again after a week or two, see how much you have improved by looking at the first recording.