Melvin
Flim Forever!
There are so many variables here. Are you using a stop bath? That also is important. I tried using plain water once, and before long I was getting gray prints.
Is there an honest to goodness photo shop still in Knoxville? A place where you can ask questions? Who maybe can direct you to somebody who'd know? It seems like your teacher isn't much help!
I assume you are using resin coated paper? If you accidentally bought fiber based paper and everyone else is using rc, you will get different results.
When i was using RC, and I was doing contact sheets, I elevated the beseler enlarger halfway up the frame, set the lens to f/8, used either a 2.5 filter or no filter, and used 8 seconds as my start time, then developed for 90 seconds in a 1:10 solution of sprint developer, which is basically d-76.
If nothing else, try a different enlarger in the darkroom. perhaps the bulb is on the way out.
Check the height of the enlarger head. the higher the head is, the more time and light you need. It sounds like you have the head cranked all the way up to the top.
A good test for you would be to find a friend in the class who has had no problem making a correct contact with their negatives, and try making a contact of their negatives on the enlarger they use. If it doesn't come out correctly, compare notes with the person who was able to get it right. If it does come out right, try the same procedure with your negatives. If it comes out wrong, you have either mis-exposed or mis-processed your negs.
ETA: I misread your post. I take it you are having trouble with your final print. Again, check the height of the enlarger head. If you are trying to crop out a significant portion of your neg, and you have the enlarger head up high, you will need more time and more light, and you will be more likely to need a number five filter. Find out how much time you need to get your blacks right, how much time you need to get your whites right, and then use a combination of dodging and burning to get a good final print.
Well, having the much more expensive fixer last longer for one...
My darkroom day is monday so I can experiment soon. I'm gonna make a contact sheet and when the blacks come out good, I'll keep the enlarger at the same height/aperture/time and see how that goes.
Ouch, you can only get in the darkroom one day a week? That would drive me nuts (granted, i am currently in between darkrooms, which is driving me nuts, but regardless...)! If it is something you are passionate about, and you have spare time in the afternoons/evenings/weekends, go to the art department at UT or your local community college, introduce and ingratiate yourself with the photography faculty, and find out if there is any way you could go in and use the darkroom there. You would then be able to potentially pick the brains of the photo students there, and get more practice in. Alternately, depending on the school, some schools let photo students bring guests in to the darkroom with them. Find out the policies, find a photo student, and bribe them with beer money to take you with them in the evenings or weekends.