I need a push

Ive always been somewhat of a shy person to this but im finally getting the courage to dip my feet into this kink but I am a but nervous. I was wondering if anybody had any advice on how to start or any tips for me in general if they could give them? Thank you :)

By the way im currently at 5’7” (170cm) and 155lbs (70.3kg). I do have quite a bit of muscle to and a larger chest for most but I do retain a but of fat in my build too, dont get me wrong on that part lol