It sounds like you want to, but have doubts. Let's call it a passion you want to pursue.
That in itself probably answers half the question doesn't it?
Of course there ere are lots of factors.
Where are you in life?
There is a world of difference between 22 living at home vs say, single father of 3.
How likely are you to get the progression/opportunities?
Its it wishful thinking or real possibilities??
How stable is the new job vs the old job?
The [less] important factors.
How is travel to and from the place vs where you are now?
Travelling 2 hours to work gets old very quickly... you have to REALLY like the job.
And finally the money.
Are we talking 10% down or 50% down?
Can you afford it?
How long will it take to get to what you want?
And even here there are a hundred other ideas bouncing around my head.