I think it's the toughest as a young man, cuz you have to build yourself up to become of some value. Unlike women who are born with value.
I've been very open about my issues with my self esteem throughout my life and it was the worst in my late teens and early 20's. The worst thing to feel as a man is to to feel useless and unfortunately we live in a world hell bent on telling men and young boys that we are not needed
I do not see it getting much better honestly in the future. I was able to uplift myself out of that funk through writing (journaling/songwriting), setting achievable goals no matter how small and just telling myself to take it one day at a time.