Had my first D&D session, DM said I made a good first impression, so I must be doing something right. I'm still new to it and trying to figure out all the stats and all that, any tips and tricks or something?

Also here's my main character, Winter Sunrise. He's a Tabaxi.

Hi, it's fuckin' 4:30 in the morning and I'm recovering from a breakdown. Was told I should try and sleep, but at this point, I can't even sleep so why try? Decided to give this app a try, but I can't promise I'm gonna use it frequently.