Will I regret dying my hair ? Will it damage and ruin my natural colour?

I’ve had my natural blonde hair my whole life I am 20 for context. I have bleached and dyed the under part pink before but the rest is untouched. I’ve always wanted darker hair maybe a dark brown or burnette but I am worried I won’t be able to get my natural blonde back if I hate it. Does anyone recommend keeping natural hair or is it worth it to dye it brown? My hair is pretty thick and wavy so I don’t think it will damage it too much but I’m worried I will hate the colour of everyone in my life will tell me I looked better blonde as it seems to be THE colour now day.