how to come really good?

Well the best way to be amazing at sex is by being relaxed. If you are nervous or rush things in could hurt and you wont get any pleasure from it. Also to become really good you can finger yourself more often so every time you bath or shower as this makes it easier to put your finger in. Also if you try role play and sex toys you can get more turned on and ready for excitement. You should really have sex with someone you really trust so then you will feel more relaxed. Hope this helped!