There's nothing wrong with making yourself happy- Unless obviously if your happiness comes at the expense of maliciously hurting someone else. There’s a difference. On your road to self fulfillment- some people might not be accepting and even make you feel bad about something you’re doing. Most likely:
1) it’s out of character
2) because it changes their life in some way- whether how they get to hang with you moving forward and or self reflection they themselves are not ready for.