Shane1,

If it is something you want to do, I say go for it

BUT...

From my personal experience you have to be 1000% committed to any business, to hope to make a living from it.

I have been fortunate to make a good living from it, started at 30 and been doing it for 5 years.

(Disclaimer: I run an Electrical/AV company)

The company is my life, 24 hours a day, it is who I am. I am ok with that and is a sacrifice that I am willing to make. It will provide a future and opportunities for my family that I never had.

If you can't give that type commitment I would suggest staying current field of engineering that you have already invested time and schooling into.

Good luck dude !