Wanting something for yourself
I believe you can choose to do something that changes your life. You can want more for yourself and decide to act on it.
Even if it does not work out
I also think it is okay if you do not win. The attempt does not have to end in success for it to matter. You wanted to do something for yourself, and you tried.
Room for the attempt
That is the part I want to hold on to: giving yourself permission to try, without making the outcome the only measure of whether it was worth doing.