Help a girl out with dating

Hey guys, If you're bored rn and wanna give me some advice I'd appreciate it!

I am having a hard time dating:( I'm almost 20 and don't meet a lot of people outside of work/school so I use dating apps.

My first guy I met was really fun to be with, he was in military and so we hung out once a week. We "talked" for 2 months then randomly he told me he didnt wanna lead me on so we should stop talking.

The second guy I talked to for about 3 weeks and then he started texting me less and less and I brought it up how it bothered me and he said hes too busy so, again, probably should stop talking lol.

Then theres a guy I'm texting now and we've hung out 2 times and I met him 4 days ago. I asked him to a movie last night and he had said hes busy we could try a later movie and I said no problem text me when you can. It's been 24 hours now and he hasn't said anything.

I have a feeling I am being too clingy, but all these guys I kinda ask and make sure they're in the mindset of dating eventually and not just messing around trying to hook up you know. So I go about it like were in the trial of dating. In my mind that's texting everyday, trying to hang out when were both free, etc.

I have barely any dating experience, my first kiss was a year ago lol. Am I moving too fast? Any tips? Do people usually text every day or is a few days in between normal? If I sound ignorant or stupid I'm sorry I just need some advice cause I honestly dont know what is normal.