Hello, you need to put God first.
You should do it for the right reasons, I see you are coming here because you do want to seek God,
"Blessed are those who hunger and thirst for righteousness for they will be filled."
-Matthew 5:6
It may not always be easy to have faith in Jesus and have self control and do what is right, but do it out of love.
Have compassion and concern for others, not because you will be rewarded for it but because you love them and you want them to find relief from their own pain and misery.
Try not to lust by having respect for the girls and also for yourself, you should keep your thoughts pure and make accomidations to do so and if you need help pray to God,
This is how you can put God first, by loving your neighbor, if you forgive and love people and forgive their debts, God will also forgive your debts and they will be cancelled.
"Do not judge, and you will not be judged. Do not condemn, and you will not be condemned. Forgive, and you will be forgiven.
Give and it will be given to you. A good measure, pressed down, shaken together and running over, will be poured into your lap. For with the measure you use, it will be measured to you."
-Luke 6:37-38 New International Version
To summarize, you could put God first by, having respect for Jesus and your neighbor and yourself. Also pray and read the Bible and seek God's will for your life.
Thank you for coming here and asking, to me that shows you care and you are really trying, I hope God has mercy on you and heals you and blesses you, take care