Good news, your film is probably fine. Take snip an inch or so off the end of a new roll and put it directly into your fixer until it is clear. Rinse and dry it and you will see that it is not as clear as you will find for slower films, particularly Delta 100 or T-Max 100.
There are lots of good books out there, but my suggestion is to stay simple for now and sign up for that class as soon as you can.
thank you, i feel like i just need to experiment more as everybody is saying. Thank you.