Warning, long rant, read at your own peril :p

Went darkroom Saturday night for a 6 hour session, was planning on making a few medium format prints, one of them being this one above (scanned negative).
Got to the darkroom, made myself comfortable and got ready for a productive 6 hour session.
Loaded the 6x7 film holder and started trying to adjust the enlarger to display the image on the easel.

(if you move it up it crops and shows less of the whole image, move it down it shows the whole image but at a smaller size)
I was noticing I couldnt get the image to display the way I wanted to. It was either too big or too small. The only way I could get it to be framed at the right ratio was to make it out of focus. I started trying to think back, what am I doing wrong?
Fiddled around with it for a while then stopped and gave up for a second. The darkroom is really hot, and I had to keep turning the light on next to me to check what I was doing. Trying to troubleshoot in a room with a high temperature is pretty stressful and can tire you out pretty quickly.
I had some 35mm negatives with me so I popped it in the 35mm holder and tried. It framed perfectly… Okay, so I know I haven’t done anything wrong, must be some special way to deal with medium format.
I look at the clock its 6:45 zzzz just wasted an hour. The chick told me she was leaving at 7, so I quickly ran around the building looking for her.
Found her and she showed me that lens are interchangeable and that you need a different one for 6x6 or bigger zzzzz.
Thanked her and started going at it again. Got the image framed the way I wanted it and pulled out my 8x10 guide to setup the easel (use it to decide the size of the borders on the photo).
It was a plastic one I got with my scanner, by putting it in my bag it had snapped and became unsable. Decided to forget about it and just sort the borders after.
Test strip time, decided to make some test strips and print the above photo.
Set the lens to F8 and made six 2 second exposures (expose the photo paper for 2, 4, 6, 8, 10, 12 seconds and see which portion I think works best).
Put it in the developer and it turned pure black…
WTF? Did I accidentally expose the strip to some light or something? Ugh.. Try again and the same thing happens.
I look at the clock and laugh to myself and think maybe ill just go home and come back tomorrow.
Always sucks when you try to start something and everything seems to go wrong, soul crushing and pretty off putting.
Go outside get some air, go back in decide to make a test strip of a 35mm shot to make sure it wasnt the paper.
The 35mm test sheet is fine… Light bulb goes off and I realize what the problem is. Given the F stop you set the enlarger at the intensity of the light gets stronger or weaker, if its too dark I need to either expose it at a shorter time (0.1 seconds) or make the light weaker.
I set the camera to F16 and try again, bingo it works. I look at the 2 second test strips and realize I need to make it 1 second for more accuracy.
I find the best exposure and make a print.

Looking at the negative I realize that this is an example of what people call a thin negative (a negative is thin so it lets light in easier/faster).
Look at the picture and its kinda weird, exposed right but not how it should look.
Give up for a bit listen to some music, decide to print something else. Pull out a shot and try a F16 2 seconds test strip but the strip ends up being blank….
Try again at 5 seconds, its blank but with the faintest bit of grey at the end.
Eventually try at 40 second intervals, and the last strip 240 seconds is still underexposed.
I shake my head and laugh, how ridiculous is this. I got one negative thats so thin that at F8 it went pitch black in 2 seconds, and another negative that so thick (doesnt let light through easily/fast) that after 240 seconds its still underexposed.
I normally hear all these terms get thrown around, but its not till you do it with your own hands that you really build intuition for it.
Decide to go back to the Lareina print since I cant be bothered to do a print that that takes forever just to make test strips (was taking long even at F5.6).
I look at the print and look at the scanned version on my phone and ask myself why are they different? Light bulb goes off, the dark blacks and the bright whites aren’t in the picture.
I remembered what Ayako told me about the contrast filters and instead of using number 2 I put on number 5 and made this:

Problem is that it has a lot scratches on the bottom and a few blemishes here and there. Heard that there is a thing called spotting to fix dust and scratches, but not sure to what extent it can be done and how hard it is…
Oh well, pretty frustrating day but learnt a lot. Ill be back…