"Cant do a big rectangular bucket due to people I live with will be like yo why the fuck is there a big ass bucket in your room."
This is a classic example of what I call "Penis Enlargement paranoia". We automatically assume that other people will somehow have insight into our Penis Enlargement habits and make the connection between various devices we might have and our Penis Enlargement activities, whereas the reality is they probably will not. For instance, I used to freak out if I left a tape measure or cable clamp or even moisturiser lying around, thinking that the people I was living with would know what I was using them for. Realistically they would probably assume that the tape measure was for measuring for space for new furniture or something, the cable clamp was for tidying cables, and the moisturiser was for moisturizing my face or hands, not my dick.
In your case I'm sure that anyone seeing the big bucket will assume you are using it to clean your floor or to soak your feet!