I never thought losing my hair was an issue, then when it came time to shaving it I cried like a child. Took a couple of days to get comfortable in it. Losing little buzz cut hairs seems much easier emotionally than my long, thick hair would have been to watch fall. I hate being cold so knew I wouldn't handle cold capping, plus my hospital didn't offer it. Having a wig is awesome for wanting to go out and blend in; I personally felt I attracted way more looks wearing scarfs etc so stopped that. I don't bother with the wig anymore its getting a bit too itchy with hair growing back, so I alternate between a beanie and baseball cap.
The biggest thing for me has been watching my eyebrows and eyelashes fall out even 6 weeks after chemo has finished! I have never been good at makeup anyway so trying to disguise that is much harder than wearing a cap.
Im just finishing radiation now but have had a mastectomy with no recon, so there's nothing there breast wise to rub, but its chaffing just from exercising with a crop top. They have lots of different creams they can give you and if you suffer burns/skin breakdown the nurses can re-dress your breast everyday if need be.
Keep asking questions, good luck :)