Contra was always one of my favorite games but in typical fashion, Konami had to screw it up. I don't even remember if it was the last Contra game but they made so many changes and had it in 3D, it flopped pretty badly.
I've dealt with it my whole life and it was only through sheer stubborn and a strong will that I overcame the odds. Once you realize that you're the only one you can depend on when things get tough, it'll better help you to understand what it'll take to keep going.