No Reverse/At Wits End!!

Hello.I'm new to the forum and was hoping someone can help.  My problem is with my 93 Seville.  I was driving about 65 mph and went to switch lanes and had no acceleration, just sounded like I was in neutral and was redlining.  After pulling over and shutting the engine off, I started the car back up and could only get up to about 35 mph and the engine wouldn't shift to any other gear.  I pulled back over and found out that I did have reverse but only first and reverse.  Now,  after trying to find out what's going on with it, having no luck, I have most gears...at least enough to get up to 65 mph, but reverse is mostly gone.  Sometimes, if I step on the gas hard enough, I can go in reverse, but the car stutters, kind of like if I had the emergency brake on and sometimes I have no reverse at all. I've been told maybe it's the bands, the tranny is completely shot, etc.  To be honest I am clueless when it comes to working on cars and this car is constantly giving me problems.  I was reading through the forum and was wondering if it could be the pressure control solenoid?  I hope it's something fairly simple and cheap to fix but I'm worried it's not.  Any help or advice I can get is greatly appreciated.

i suggest taking it trans shop or dealer. You likey have broken shift soleniods, not a major repair. It is possible you have other concerns due to no reverse.