I back carry almost daily in wraps
For (SCC) Soft Structured Carriers like the Ergo, I do find it more fiddly to get Josh on my back but practice really does help. I'd say firstly get comfortable getting the straps on without the baby. I find that for a SCC it takes me some time to get it buckled up. Practice with a teddy bear getting those straps on so that you're confident. Then practice with baby in front of a mirror. If you're not comfortable get your partner to 'spot' you/baby or do it over a bed so you feel safer.
This website is brilliant for asking questions about slings:
Natural Mamas
You can sign up and go to the Asian Style Carriers section or just General Babywearing section and ask questions there to get tips. They are super friendly and they have helped me so many times.
This is us with a SCC similar to an Ergo
and DP
This photo is also a SCC with a babywearing coat over us as it was raining
And yes, hair pulling does happen:
Good Luck

It's wonderful, once you get it you'll never go back.