I have problems getting wet & turned on i used to without a problem i've tried foreplay i'm not on meds i don't like lubricants what should i do ?

Low desire, see doc.: Low desire, or libido, can be a complex problem. The first step is to make sure that you have no physical problems that could explain it, like fatigue from overwork, drug or alcohol use, or hormonal problems, etc. If no physical reason can be found, ask your doc for a referral to a reputable psychiatrist and/or psychologist to explore other causes.

Try other stuff: This is an uncommon problem in someone your age, but a common problem throughout the life cycle. Lubricants are the only out-of-the-box answer. Maybe you should try different ones to find one you like or find more natural. I suggest you test yourself, when alone, with other physical or visual stimulation and see if there might be an unexpected emotional component. Hope this gets better