First of all brother, you have made the most important decision that any human being could ever make. If you have truly believed in your heart that Jesus died for your sins and have accepted Him as Lord there are a couple of things that should be very sunk into your heart and mind.
The first being that you understand the price that it took for you to be forgiven, which was the blood of the Son of God. That alone is the biggest demonstration of love in all of the universe.
The second thing is that you understand that your sin separates you from God eternally. Therefore it was Jesus's sacrifice that has given you the right to have a relationship with the Father.
The third thing that we must all understand is that as Christians, if we sin consciously knowing it is a sin then we separate from the power of God in our lives and by doing that God can't use us in the full potential He would like to.
But another thing is this. Before we were Christians we did anything we wanted without feeling guilt, or shame or anything like that. A very good signal that you have become born again is that you are being convicted by none other than the Holy Spirit. He is the one who tells you don't do this don't do that. And it is through His word that He will tell you what to do in any specific situation.
Now, walking in light of all of this:
Ephesians 6
10 Finally, my brethren, be strong in the Lord and in the power of His might. 11 Put on the whole armor of God, that you may be able to stand against the wiles of the devil. 12 For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age,[c] against spiritual hosts of wickedness in the heavenly places. 13 Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand.
14 Stand therefore, having girded your waist with truth, having put on the breastplate of righteousness, 15 and having shod your feet with the preparation of the gospel of peace; 16 above all, taking the shield of faith with which you will be able to quench all the fiery darts of the wicked one. 17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God; 18 praying always with all prayer and supplication in the Spirit, being watchful to this end with all perseverance and supplication for all the saints— 19 and for me, that utterance may be given to me, that I may open my mouth boldly to make known the mystery of the gospel, 20 for which I am an ambassador in chains; that in it I may speak boldly, as I ought to speak.
Galatians 5:16
16 I say then: Walk in the Spirit, and you shall not fulfill the lust of the flesh.
Being a Christian is a minute to minute thing. It is a constant battle. And it is a battle that we can't do on our own. We can only overcome sin with the power of the Holy Spirit. That is when we agree with God that whatever He is convicting us of is sin, and we acknowledge that it is both harmful to ourselves and displeasing to Him.
1 John 1:9
9 If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.
So in conclusion, draw close to God in scripture and in prayer. Fill yourself with His word, and remember His promises every second of your life. It only took one second for you to be born and it only takes one second for you to leave this body, which could come at any time. We must seek to please God in all that we can in between those two seconds, but we can't do it on our own power. We NEED Him.
John 15:5
5 “I am the vine, you are the branches. He who abides in Me, and I in him, bears much fruit; for without Me you can do nothing.
God bless you brother.
And remember this, the spiritual controls the physical. If your deliberate actions, thoughts, and feelings are evil then be careful. But if the fruit of the Holy Spirit is flowing out of you then rest assured in your salvation.
Galatians 5:22-23
22 But the fruit of the Spirit is love, joy, peace, longsuffering, kindness, goodness, faithfulness, 23 gentleness, self-control. Against such there is no law.