chapstick, you seem to be healthy and without any organic problems. Premature ejaculation is the norm for those beginning their sex life. You will outgrow this when getting more experienced. As all other posters already said, you should do more sex with your partner.
Many good advices from the posters. Just a correction regarding the testicle pulling method (very efficient, by the way): it’s the other way around - in the proximity of ejaculation, the testicles move up the shaft (away from the body) and you have to pull them back at their place (next to the body).
I decided to post in this thread only to express my opinion regarding your struggling with Kegels which is opposed to what others said. Being healthy at the age of 23, you need Kegels as much as a restless healthy 10 years old kid needs jogging. You don’t have where to improve more your sexual powers. Remember to do Kegels when you’ll be 35, or when you’ll feel your sex drive is declining, which shouldn’t happen too soon!
As about the technique of suppressing ejaculation with a firm Kegel at the PONR, that is an “advanced” trick. It is not fail-proof and for mastering it to a decent degree, you’ll need a LOT of exercise in real sex (not just edging). I mean 6 - 12 months! Based on your own description, you are not in the position to make kegeling experiences right now. As a conclusion, Kegels are just disturbing you right now, without any benefits, just downsides.
Focus on the easier and more efficient technique of controlling your arousal by deflecting your thoughts, control your breathing pace, etc. as already said by others.
I have to mention that your relationship is not a normal one. You have to take firm steps to correct it. An almost sexless relationship at such a young age is far from normal. It will affect both of you in a bad way if you don’t fix it!
Try to get to the root of her problems and make her know it’s important to you to make her sexually satisfied!
Starting BPEL: 6.9" (Dec.1st, 2008)
Current BPEL: 8.11" NBPEL: 7.63" BPFSL: 9.09"
Current MEG : 5.6"