I think im scared to be and live alone?

Shawn, you have had similar issues expressed here, for at least the past five years. You have been on anti-anxiety meds, don't know if you still are, but its a good idea. If you are not being currently involved in supportive therapy with a licensed professional counselor,you should be. A dog is a nice idea, get one, if you wish, but your issues go far beyond what a dog can take care of. Good luck and good wishes,

Find a good friend to be a room mate with.....BFF?

You aren't alone because you must connect with the community through work and necessary shopping and travel.  You also can connect with loved ones through internet and phone.  If spiritual or religious, you connect with spirit or God through meditation or prayer.  If alone in the wilderness, however, then you should be scared for your own good.

Yes. Buy a German Shepherd puppy. Take him to classes to train you both. GSDs are the 'ultimate protector' and maybe the best friend you ever had.

GSDs are affectionate and totally loyal dogs. Their guarding instincts are natural which needs no training. Even asleep they will hear the slightest sound of approach. Until you have owned one you will never appreciate their qualities.

Find a girlfriend or wife.

Nope.                                                    

Get a dog or a roommate.