Can I increase size after 18?

It's important to understand that sexual needs are a natural part of being human, not something abnormal. It's okay to feel bothered or depressed about them. Medications like hormone suppressors are risky and can cause serious side effects. Instead, I recommend speaking with a counselor or therapist who can help you explore and manage these feelings in a healthy, positive way, rather than suppressing them.

Being sexually active at the age of 18 is a common thing, but it is important to be prepared. Safe sex through protection, like condoms, can not only prevent pregnancy but diseases as well. Anxiety is a common feeling before sex. Sharing your fears with a partner is a good start. 

An erection problem is the inability of a man to get and keep an erection during sexual activity. Such cases occur as a result of stress, health conditions, or some prescriptions. Medicines such as Viagra or Cialis can be used to resolve this issue. Before choosing any of them, it is necessary to receive a healthcare provider's opinion, conducting a medical examination. They can discover the appropriate remedy according to your condition.

Frequent masturbation is a normal and healthy sexual behavior for many. It doesn't cause any significant harm or affect your future sex life. However excessive masturbation can lead to physical and emotional health problems, such as fatigue, anxiety, depression, and loss of interest in sexual activity. You can try to redirect your sexual energy into exercising or hobbies, and establish healthy routines and sleep patterns. 

The washing of your hands after such contact is one of the most necessary preventive measures. Rotting sperm can possibly harbor bacteria and viruses that may be the very cause of some illnesses, especially if they find their way into your body. The process of washing your hands with soap and water will help with killing those germs. On the off chance that you don't hands, you may get stomach trouble or feel sick.

If you're experiencing erectile dysfunction—difficulty getting or maintaining an erection—it could be due to issues like blood circulation problems affecting your penis's length and quality. Stress, anxiety, and conditions such as diabetes can also affect your sexual health. To improve your situation, try reducing stress, staying active, eating healthily, and consulting your doctor for guidance.