I love the saying "slow and steady wins the race"

School is not about finishing as fast as you can. It's about learning. So if you're not learning anything this semester, then there's no point in taking classes. Are you learning anything? That's what you have to ask yourself.

Go at the pace which you find most comfortable. If that means you have to drop all your classes for this semester, then so be it. Finish school strong. Come out with more knowledge than you came in with.

Most schools in the US seem to push students to finish in 4 years, but plenty of students finish in 5 or 6. Those students tend to be very knowledgeable and intelligent. They know their strengths and weaknesses; they're able to understand risk vs. reward. That is, they know finishing in 4 years might be risky for them (grades wise), so they take it slow and finish whenever they finish (which gives them a greater reward in terms of knowledge).

There were a couple of times where I wished I dropped my classes for a whole semester, and I kinda regret not doing that. (I never dropped out a semester because I was too gung-ho about finishing school as fast as I could.) So don't be afraid or embarrassed to do what you have to do. Good luck!