Using a Y cable For MSI 3060TI Ventus 2x

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Ive just brought myself an MSI RTX3060ti Ventus 2x and noticed that it needs 2x8 PCIe.
https://www.scan.co.uk/products/msi-nvidia-geforce-rtx-3060-ti-ventus-2x-8gd6x-oc-gddr6x-ray-tracing-graphics-card-4864-core-1410mhz?gclid=CjwKCAjwvdajBhBEEiwAeMh1U-q6Hc1B6f6Xb4Pboe8mhTwKptiGd3UmgeIMMIhJQcx9xJNQ99TT2xoCxJsQAvD_BwE

However, Im rocking an Corsair 550w bronze PCU which has a built in 8pin PCIe with a 6+2PCIe Y extention.
https://www.scan.co.uk/products/550w-corsair-cv-series-cv550-fully-wired-80plus-bronze-single-rail-44a-120mm-fan-atx-psu?_gl=1*l1l43s*_ga*NjAxODA5Nzk1LjE2ODU0NzQ1MjI.*_ga_8GFH5M08Q5*MTY4NTQ3NDUyMi4xLjEuMTY4NTQ3NDU5NC4wLjAuMA..

Now im wondering is this will be alright to use due to the GPU having a max input of 200w but i do know running a Y cable is not the best idea, however im forced unless really needing to upgrade.

I do play heavy gpu intense games such as Red Dead 2 and forza.
Plus, i do overclock so would it be a good idea doing so or just leaving it?