What to do ? Sell, Refinance, or buy investment property.

[Elvis Albarracin]

So here it goes, the ultimate questions i've been tossing around in my head the past few days.

Sell my property (which i occupy, primary residence), which i have built good equity and walk away with that profit.    OR

Refinance my house and get a better interest rate/lesser mortgage payment. 

Then, comes into play the questions about investment properties. I'm interested and ready to venture into that market but again tossing the ideas of selling or refinancing. (oh, and if you're thinking that i should sell, just know i don't have any other place to live, i'm guessing rent a room or something to live in the meantime)

If this post seems all over the place, well it probably is because this is what's happening in my head ! 

SO. Sell, Refinance, Where do i live if i sell, and I want an investment property. Someone give me some helpful advice ! Clearly i'm a novice when it comes to all of this, hence why i'm seeking advice from people who potentially have experience with these situations.

Any/All information, tips & tricks, suggestions, and advice is welcome. 

Thanks in advance!  (If not for nothing maybe you'll find my post partially entertaining. lol) 

Regards,

Elvis