There’s some leeway here, to personal preference. Firstly, never try do it on your own. Ask God for help. That is why the rosary helps because you are asking (whether you know it or not) Our Lady and God for help with the Our Father and Hail Mary prayers. But at any time you can just ask in your own words for God’s help, even if you say, Jesus help me, or Mary be a mother to me. These tiny little prayers are very useful. If you have a good imagination then try to imagine Jesus on the cross for you at any time of temptation as you ask him for help. It is a good idea to keep good custody of you mind for this reason. That means, don’t watch tv which has any near miss scenes (by that I mean any sort of sexual scenes or anything where people almost ) as this will just tempt you. It’s like being on a diet but still looking at cake and chocolate… a bit silly really as you are only making it harder for yourself. We call it keeping custody or the mind. If you watch a film like The Passion of Christ or one of the many movies of yourtube about the gospels then when you feel tempted you can easily call up an image of Jesus on the cross or suffering or giving a sermon on the mount. Also keep your eyes to yourself when you are out and about if you see girls dressed inappropriately, look at soemthing else (especially while you are still being strengthened).
Go to mass every week and confess when you fall.
Bear in mind where temptations come from : the world (hence above) and the enemy and yourself.
You can read the Bible, the Psalms are helpful especially as they are like little songs and you could even learn verses. You can make the sign of the cross and keep a bottle of Holy water in your room and cross yourself with it and even sprinkle it around your room now and again.
You can use other sacramentals too, like medals which are blessed, like miraculous medal etc. google them and see which if any suits you and ask Our Lady to guide you, she will be invaluable help, as you are seeing in the rosary already. God bless you.
