While I do enjoy what I do I feel it is now time to go after my dreams of being a full time real estate investor.

it's more like "meh higher interest rate for six months, but I got a great deal on a fixer upper that now has my dream kitchen."

Is OSB heavier than drywall and if so, have you ever worries about adding that weight to the structure (lighter than plaster however).

I just know it's something I dream about and feel it necessary if I'm to have a comfortable retirement when that time comes 

If it's just a handyman's dream then tear down and go back to one story.

Whilst I have matured greatly since being a child, and I have developed a more detached and practical perspective on money now, I continue to nurture the burning yearning to have and create the visions and dreams that I want for my future, and not be stopped by a lack of capital or creativity.

I am continuing to build a foundation in which to lead me, in pursuing my lifelong dream of real estate investing.

Also of the "experts" you mention, I would not give any of their comments much weight.  

Recently listened to podcast episode #202 with @MarkWalker and am newly inspired to find our dream team in Kansas City (a opposed to just settling to get a deal done!).

lots of newbie, lots of dreams....