TIPS FOR TRAVEL WITH 7 MONTH OLD

I'll be going on a 2 hr 45 minute direct flight alone with my baby girl in September. She will be almost 8 months by then. She's breastfed and eats solids. Should I bring my boba wrap? Will security make me take it off? I'm not checking any bags, just my diaper bag and a carry on... I'm just really anxious. Any tips/advice will help. Thanks!