J.M.J.
Hello,
It’s tough, but keep trying. I think the strongest weapons against the devil are simple patience and trust. A lot of times, it seems to me like I’ve done more harm to myself by getting discouraged after sinning than by committing the sin itself.
St. Padre Pio used to say something like that: “If you commit a mortal sin, why get frustrated? Say an act of contrition, and then go to confession as soon as you can.” Something like that; I can’t remember the exact words. He understood how easy it is to fall into sin even if we’ve been doing well (because, let’s face it, it’s easier than anything to fall into sin), and while he never downplayed how serious a mortal sin was (in fact, being a saint, he took them more seriously than anybody), he always encouraged people not to downplay the mercy, the grace, and the love of God, because these are more powerful than anything. IC XC NIKA - Jesus Christ Conquers
So, believe in God, and trust that in His own time and His own way he will take this burden off you. Go to Sacrament of Confession, and especially try to set aside time to pray the Rosary. Our Lady will never let a devoted child of hers remain in sin for very long. One day soon, maybe without you’re even noticing it, it will become easy to stay pure, and the temptations will somehow have lost their hold on you.
You’re in my prayers. God bless,