(my English is bad) You should write more about yourself and what exactly you're failing at. But I can say that in order to increase the rating at the initial stages, it is worth solving classical learning tasks, which are usually collected and posted on different sites. In Russia, for example, we have acmp.ru or informatics.msk.ru and at one time I decided exactly from there, and only then I began to solve on CF.

I think you should try different training approaches and experiment. For example, solve problems with increasing difficulty: +100, +200, +300, +400. It's better to watch problem explanations only if the problem hasn't been solved after one or two days (The key is not to deceive yourself and keep trying, even if it feels like you can't solve it).

You might want to consider whether you have issues with school-level math or lack knowledge of basic techniques (e.g., binary search on the answer and similar methods).

Also, I've heard that competition math significantly improves skills for competitive programming (most likely tasks where you need to think in a similar way but without solving equations). Just open archives of math olympiads for school students and try solving those. Experiment with combining tasks from math and informatics competitions. You could even try dedicating a month solely to math without solving programming tasks to see how it affects your skills.

Recently, I came across Theme CP, and you could give it a shot as well (https://themecp.vercel.app/). Check out this blog post for more details: https://codeforces.me/blog/entry/136704.

Sorry for my english)

May be give some Virtual Contests

Try to give virtual contests more. In Div2 try to solve A as quickly as possible. And give more virtual contests. Looking at solution is not at all bad. After looking at solution try to think why you were not able to reach that solution. Wheather its knowledge or concept that you lack, or its implemnetation. Try to have a growing and sports programmer mindset. Practice upto +200 of your rating range.

you need to do some hard problems so that in contest the problems feel easier, you've just been spamming fodder questions

Don't be depressed, be better

forget about the cf rating and just enjoy solving problems

Stop trying hard, from the problems you have solved, You can reach higher rate, just don't participate in a contest if you don't feel like it (I have lost a lot of rate because of this), If you don't feel like solving, join the contest virtually when you feel like it and after a contest try upsolving what you could not solve.

Learn more advanced algorithms, practice out of your comfort zone, get a community of good coders that can help you.