older gays: opinion on younger people (18) at gay saunas?

im 18 and im new to all the sex things (honestly getting kinda addicted i fucked like 4 men in 2 months) and i wanna see how saunas are cause i heard theres lots of sex there. but i also heard that older people go to saunas. so, if i go being this young (im a twink bottom), will i get fucked or am i not the kind of person the people there look for? also, are there many diseases? (std, humidity bacteria)