Everybody (else) replying to Skeeno has beaten 5nl up on their journey. Stacks is playing 200nl and 400nl now, but he beat the micros first. We all did. Noone here woke up one morning and decided to deposit a couple grand and immediately beat 100nl+.

A2 as a LP raise is profitable at any level in 6max.
5Ts is a stupid hand to squeeze with, but if you have reads to believe that ATC is profitable there, then it doesn't matter what your cards are.