Regarding 3, specifically regarding the line "I feel bad every time I get help because I feel that I have to be the one who solve the things." Are you serious? You feel badly because you are the one that has to solve things related to the coursework you are doing? Who do you think should be doing the solving and if it's not you how are you ever going to learn anything? Remember what you pay for getting questions answered here. If you want someone to do all your work for you go hire someone, but you had better hire them to take your tests as well.
If above was just a glitch in translating from Hebrew to English well ok then but if not you really need to revise your attitude a bit. Learning involves work. There is no way around that. Sorry.
regarding 1 - here is a quick proof