Are there successful-profitable traders that use just a 1:1 RR ratio?

I have learned from pro traders that is essential at least to risk 1 and make 2 (1:2 Risk/Reward), but many times, my TP is not triggered and I believe is because I am too greedy targeting 2 instead of just 1. I was wondering what your thoughts are on using 1:1 RR ratio and if you know profitable traders that use 1:1 because higher than that did not work for them.