Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.
This is not as bad as you think.
The rear seal, is there a lip around the outside of metal that you can tap against?
The rear seal, is there a lip around the outside of metal that you can tap against?IF so use a screwdriver and hammer to tap, if not then you will need a seal puller, and they are cheap to buy.
AS for the front seal, Take the bolts out and hold the shaft in as you gently remove the housing from around it. The transmission should be standing on its end to get this out. THen you can remove and replace the seal and gasket.