One of the most dangerous things in the world is not being able to say no to people because you don't want to upset them or dissapoint them. This will completely ruin your life in every way possible, at work, in your private life, your sex life and your friendships. It's a way of removing your own consent in your own decisions and go against your wishes, it is always a crime against yourself. Let yourself have a say. Upsetting people is better than traumatizing yourself.
you can't waste your life btw it's just not something that's possible to do. your mere existence is already a precious and valuable use of your time. the time you spent becoming who you are now was inherently worthwhile