Trouble sleeping...What should I do?

Erin
I'm 12.5 weeks so it's not my belly that's bothering me yet. I fall asleep right away (usually early) but then wake up wide awake. I'm brain is always thinking about random things and I can't seem to get comfortable. If I do fall back asleep it's not for very long because I'll wake back up again. What can I do? I wake up every morning exhausted😪