We all masturbate - especially guys (but girls get in on the fun too). But honestly, most guys stick to a simple hand job (from themselves or their partner).
There's so much more to it than that. For one thing, a lot of men masturbate too quickly. If you rush to climax then guess what - you're training yourself to climax quickly. This is part of why so many men get ahead of their partner, especially a female partner - and your partner may not appreciate that. It can even cause premature ejaculation. Not only that, but taking longer and exploring zones other than the genitals can give you ideas for things to try during sex. The "stop and start" technique, where you arouse yourself, then stop, then start again can be particularly valuable for learning to prolong erection and both get and give better sex.
Also, a lot of men neglect their testicles - which are a very sensitive area and touching them at the same time as the penis can add a lot. Using a small vibrator on your balls can be really intense.
Using toys can also make a huge difference. Masturbators and fleshlights are particularly good if you, shall we say, have problems with manual dexterity or if you have carpal tunnel, which can be aggravated (or even caused, ahem) by masturbation. Masturbators come in all kinds of designs, and can be made to represent the mouth, vagina or anus. Breast-shaped masturbators are rarer, but do exist. Some masturbators have both a vagina and an anus or are designed to simulate oral. In other words, you can find a masturbator that fits your preferences, gay, straight, regular or kinky. Vibrating masturbators take things to the next level. Using a masturbator can both give intense orgasms and be particularly useful if your goal is to train yourself to take longer to cum. If you have problems with letting down in the middle, masturbating with a cock ring can help - and cock rings also do great double duty as a toy for partner sex.
A lot of people don't want to talk about masturbation - but it's part of a normal, healthy sex life, it's a great way to relax and if you do it right it can help you learn to be a stud who will please your partner much more than you thought you could. So - pick up some new techniques, and learn to have even better solo experiences - and get a better understanding of your own body and what it appreciates!