XFX Rx 6700xt QUICK with pigtail?

Hey all,

I did bought used XFX RX 6700XT Quick but i think that my PSU is very bad... My PSU is Fortron 550W HYPER 80+ PRO 550 (bad Prebuild PC) and it have only one Pcie with pigtail... Do u think it will be okey and my games will not start crashing or should i buy (new or used) PSU? If so, can u recommend me one?

my cpu is 5 5600 and i have 32gb ram.