Trying to get through the journey of growing my hair back

@Caz1.i tinted my hair blonde 5 months last sept after radiation ended.. Had no probs. Let it grow out and put blonde foils through the regrowth did the same April this year, and again in June.. Four weeks ago had a copper tint and more foils. Its faded very fast and today I found a colour and will go back to doing my own hair as I'm never happy with getting it done by other hairdressers. I wish I could take my head off and go to me. Lol