Just Passed. Not fun at all but totally doable.
Going to try and only give the stuff that would be helpful, but feel free to ask questions and I'll reply.
Series 7 Whisperer's premium YouTube. Even if you think you're good at options and don't really need his extra videos, it's the smartest $25 you will pay for anything in the testing prep process. Everyone's draw is completely different, but options math questions are like free points, so there is no reason not to be 100% on these, and Ken's way of doing it is objectively the easiest and best way
Accept that you will suck at some areas and don't try and master everything. I suck at margin. No other way to put it. I can get the 50% for Reg T and usually remember the 25% vs. 30% rule, but anything beyond that is not going to happen. I cut my losses and accepted that it was worth it to study the more important areas. In the real exam, I think I got 2 or 3 margin questions, and for 1 it was easy, and for the other two I fumbled around on my calculator until I got one of the answer options and picked that. I probably got the two harder ones wrong, but I didn't care.
KNOW YOUR PRODUCTS. The exam must be made by some somewhat sadistic people because the differences between some products are so small. When your gut says something when you're really torn between two, go with your gut AND DON'T COME BACK AND CHANGE IT. Some of these questions really suck, and knowing the tiniest difference can be why you lock in a point vs. lose it.
Reddit is awful, and I was stupidly addicted to this place and am so glad to leave it now. Try and touch some grass. Towards the end of this exam, I was compulsively opening Reddit, which is laughable because before I started licensing, I had never used Reddit in my life. I spent so much time on here, but the truth is that we all get a different draw. Dreading the fact that someone else got a ton of questions in an area you're bad at has NOTHING to do with the draw you will get.
PRACTICE QUESTIONS. Do them. Do them all. Do them so many times that you begin to memorize them because when the test comes, it's going to be so easy to get rid of answers because you distinctly remember some random practice question you did 100 times saying that's wrong. Take the free Achievable one. Take the one on https://series7exam.org/. The STC questions are phrased the closest to the real exam after Ken's (which are almost identical, if not word-for-word the same), BUT STC was way too hard on some really small details that never came up
Get Achievable if you didn't study finance and this is a new world for you. After today, I will have passed the SIE in 2 weeks and the 7 in 2.5 weeks ONLY with Achievable to learn the content. It's the most simple and easy-to-understand textbook. When the exam comes, memorization won't save you, so actually understanding the content matters. Also the people who run achievable are absurdly kind and helpful and will send you a legit essay on why you got a question wrong if you ask for help. I can say I've hands down had the best experience with them compared to my friends who have used every other major company.
Good luck. Godspeed. Hopefully, you get off this subreddit (and all of Reddit) soon.