Stroller/Car seat anxiety! 😩 help!!!!

Bree • Bree ❤️ 28. Peds Nurse 💉 my micropreemie came 12 weeks early 💙💙
FTM and honestly this whole car seat and stroller thing is getting confusing. I'm lost because I don't know where to start. I need help lol 
Things I need: 
Adjustable handles (I'm short) 
Easy assembly 
Preferably black so it doesn't get ruined. 
I've looked into Chicco and britax so far. 
I'm willing to spend a good amount but not the cost of an UPPAbaby or anything lol 
I would like to just get the travel system together. 
Any suggestions?? Thanks everyone!!!!