Giving up sin for accepting dua

I am doing one sin long time (more than 10yrs Please include me in your duas). But now I have dua that I wish very very to accept by allah. So i give up all the sins and started doing good indeeds. But whenever I inteneted or tempted to do that sin, I think about that dua to be accepted and I will change my mind. So I afraid that instead of giving up sin for allaah. Is it permissible to avoid that sin for dua to be acceptance. I afraid that whether my niyyath is wrong or I should afraid of allah when I tempted to do that. Allah know the best.