People on injections: Is it really that bad?

I'm hoping to start t within the next year-ish and I'm a pussy. It's either self inject or harras my roommate(a good friend lmao)

I just wanna know how easy it is. I'm sure it's not bad and I'm probably overthinking this lol.

Also, I've weighed the options and injections are the absolute best for me personally. I'm just a wimp.