just keep praying anon. say them in the morning when you wake up and before you go to bed. do it everyday, even if you woke up late, or tired, or just feeling lazy. say the Jesus prayer whenever you get the inclination to do so. pray when you don't want to. pray it when it's inconvenient. pray it when you don't have time. pray for other people. pray pray pray. prayer is our weapon against temptation.
nobody can make you virtuous but God, so ask Him for help all the time. You say you only pray when you want something, and then you say you want to be virtuous. It seems like the obvious thing to do is pray for mercy and virtue. Since being virtuous is a continual act or process, this means you must pray unceasingly or at least as much as you can.
I know the Jesus prayer as well as set morning/evening prayers is mostly an Orthodox tradition. but you don't have to be Orthodox to follow this advice.
Metropolitan Anthony Bloom has a book called Beginning to Pray. It really jump started my stagnant prayer life, and the other parts of my life are much better now that my prayer life is better. I haven't fapped in a month and a half, I've quit drinking for a month, and I'm on day 5 without tobacco. In addition, my other behaviors have markedly improved.
tl;dr - pray