So early onto my undergrad, I knew I had to find 3 professors to use for letters of recommendation, but given the schedule these professors have and how many students they have to deal with, I find it to be almost impossible to find more than 1 professor that can vouch for me, especially after that long gap between taking their class and applying for grad school during my final year. I can simply just reach out to the ones that I got an A in, but I'm not their only A student and they likely forget who I am.
Add in the factor of the professors not being able to reply to my email and you are left with stress. Can anyone help me figure this out? I feel like this is by far the most difficult aspect of the application.
Also, how can you use professors for letters of recommendations if you decide to take a break between grad and undergrad?