Just some free advice, for what it is worth:
You should take this thing one step at a time. Before you even start thinking about visa petition paperwork, there are some preliminary steps you should complete first.
1. Pick a country
2. Get a steady fulltime job. You will need the income evidence later for Affidavit of Support
3. Take about a year or more to develop a relationship with a lady
4. Get engaged
IMO, you are nowhere near ready for visa paperwork at this time...