The methodist version of the gospel is a bit too long to write in this space. I encourage you to read Matthew, Mark, Luke, and John to get a fuller sense of the methodist gospel than any synopsis of it that I might give.
As for how we get to heaven, that isn't the goal of the gospel. Rather, Jesus taught that heaven is the realm where God reigns, and the goal of the gospel is to see his will done on earth as it is in heaven. We are called to be part of that even now as forerunners of the God's ultimate inbreaking which is described in the closing chapters of Revelation of heaven coming down to earth. So, in the end, we don't go to heaven, heaven comes to us as a recreation/restoration of what God started to do in the beginning when he created the heavens and the earth. Those who by faith are in Christ are, according to Paul, through that faith graced to be participants in God's new creation.