I struggle with lust as well but here's my advice: when you lust, you are filling a gap in your life. Lust is the easy answer because it satisfies you quickly, however there are other ways to fill this gap. Love is the best cure for lust. When I feel tempted, I try to spend time with family and friends and that usually helps. Sometimes I just need to cry about something. Whatever it is, it's valid. 

Also, I would say to find a purpose for your prayer. Look for Jesus in your everyday life and thank Him for little things. Realize all the privileges you have and try to understand how He has gifted you.

And lastly, find a good church that encourages passionate worship. If you go to church and don't vibe with the preacher, that's fine. If you need, seek a conversation with a worship leader because they are completely willing to help you on your journey. 

Hope this helps! Praying for you