5 Answers

You separate the two issues.

1) You work on stopping whatever 

it is that is detrimental to yourself.

2) You start to believe in yourself 

and that something better is indeed 

in your future.

Often times, ceasing to go down a 

negative path anymore, brings more

positive into your life.

Could you be more specific? In general, I think you should always hope and strive for a good future for your self, and I don't think you should do something that you feel that is bad for you, but I don't know exactly what it is in your case.

Say the Serenity Prayer... then change what you know you can

I do not accept what I do not like. I may accept a problem for a convenient time to walk. But when I walk is my choice. From that moment  I may choose to accept the intolerable until I leave is mine and when I leave, I leave on the wings of angels with a vision of all I know is before me worth having as my own. I am fearless and in charge of me and all of my tomorrows.   

Do you even know the Serenity Prayer?  It's "God grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference" Thanks to @doolittle for bringing that up. It says it all...........