I wanna go to a pride parade but-

I‘m a queer teen and not out to anyone but my brother, a few close cousins, and my friends at school. That’s all fine for now, but I really wanna attend Pride this year and have some conflictions. Mainly my parents finding out (my dad’s pretty chill but my mom is VERY transphobia specifically at youth) or my brother, who I love dearly and he’s mostly okay with me but quote “would cut contact with me“ if he found out I went to a pride event or showed support for trans people. One of my cousins who’s older than me by several years and a big supporter of mine (and trans guy) said he could sneak me out to one if I wanted because that section of my family is a lot more progressive and could keep it quiet (i hope). I will probably just end up not going but if you guys have ideas I will happily take them. Thank you and happy pride

(also if this is the wrong spot to post this i deeply apologize, I’m new to Reddit and this seemed like the place)

Should I pick the obvious and safe route and just not go or should I try to, and if I do, any tips on how to prevent the people who can’t know from finding out/ tips for a first pride fest because I don’t know what to expect lol