You've taken the first step back by seeking help and desiring to return to God. Now, how far off the trail have you wandered and what is it going to get back on track? You've mentioned your struggle with homosexuality and you mention addiction. By addiction, are you talking about addictive sexual behavior, or are you talking about other addictions such as drugs, alcohol, gambling, etc.?
Right now, you can recognize your sin, confessing it to God, asking His forgiveness, and asking His help to get right with Him. You're going to need support from other people. We will try to offer what we can, but you will also need people around you to lend their guidance and strength. Do you attend a church or fellowship currently? If so, are there mature, wise, compassionate people there who can help you walk through this?
There are currently no restrictions on this thread (other than one or two I will mention in a moment) so you will get some varying viewpoints from different people. Some may be unpleasant, but I urge you to not be put off is something is unpleasant, recognizing that each person is doing their best to speak truth to you. An unpleasant truth is always better than a pleasant deception.
Moderator's note: I will probably move this thread from Introductions to one of the relationship forums at some point. You may want to subscribe to the thread (click "watch thread" at the top right above the first post) to make it easier to keep track of the thread.
This thread is geared toward practical help in aiding someone return to right relationship with God. Let's focus on what we are doing here and not get sidetracked. This thread is not a referendum on homosexuality, we already have threads on that.