Is dental assistant, pharmacy technician and, dental technician good career fields to go into?

No. It's an honest paycheck, but its just that, a paycheck. You might consider a career something making 25k per year for life, but I personally don't. Do a Bachelors in Healthcare Management or something that requires a Bachelors of science. Don't take the easy way out unless you don't care too much about income growth. Diplomas and Associates degrees are simply not enough for todays job market. This advice is what you paid for it, but it's just like grandma gives. Best of luck.