How do I change the Transmission filter on a 2000 Mazda 626 LX

What is your question?

The transmission was slipping. A Mechanic changed the transmission pan gasket, and filled the transmission fluid. When I drove the car, I noticed a slip arround 30 - 35 mph. That was the only issue for 3 days. Then the transmission would stop completely. I can shut down the car for roughly 10 min. and it will drive, with no problems with the transmission, but around 7 mi. it does the same issue. The transmission fluid is full. Several people suggested that the I get the transmission filter changed. I am asking if I could do it myself, or have a mechanic fix it.

What makes this problem better or worse?

Turning the car off.

How long has your 2000 Mazda 626 had this problem?

A few weeks