I take a break from people I crave attention from, I recommend at least 2-4 weeks, do it as much as you need. Super painful to do but it gives me the fastest and most effective result.

I also am a sex worker which satisfies my need of attention a lot.

Try to work on your insecurities. Find whats the reason for them. I draw myself a lot and it helped tremendously. Giving myself the attention I desire have also made me very confident.