how ,simple how .. :с disappointment comes

I’m practicing (try) for a long time ,many years ,but I don’t understand how to get what you want

i tried different models,tried different lubricants, water and oil,i tried different poses,i tried different techniques : breathe belly,squeeze the anus (and at the same time legs) ,I have tried retract (with a relaxed anus) ,I have tried at the same time strain or relax the penis, i tried to work out nipples (3-4 months “the effect is not bad but weak), I tried in the end to just be relaxed and insert and do nothing but the result is very small,what can you advise or suggest

(sorry for mistakes and shortcomings Gtranslate)