Why am I passing more urine at night?

You might have an STI or maybe genital warts. Accompaniments can consist of growths or even bumps on the outside of the penis. STIs come from bacteria or viruses from sex without protection. A doctor's visit is the best for diagnosis and treatment. The doctor might give you medications or recommend procedures to remove the warts. 

Hi, keep in mind that the high frequency of urination may be due to urinary tract infection, diabetes or prostate disease, just to mention a few. I suggest you visit a urologist or a nephrologist who will properly diagnose and treat you. It is better to go for medical consultation rather than take self diagnosis or symptoms lightly.
 

Since you are worried, it is suggested that urologist should be consulted for a detailed diagnosis and treatment plan. It could also be a birth defect, hormonal dissonance or some other medical comorbidity that causes the condition. Thus, one should consult a specialist in the field.

A dermatologist should be consulted about your dry and itchy skin. The continued use plastic bags during masturbation may result in irritation and even damage to the reproductive system.

It's generally considered safe and does not have any adverse effects on physical or mental health. It does not inherently interfere with sexual function or satisfaction, infact it can help individuals become more aware of their own bodies and preferences, which may contribute to improved sexual experiences with a partner.