Here is an old post I am recycling given that there are several upcoming tournaments in the region/area (see here). Earlier, I identified five mistakes I see people make at tournaments and one of the most common is cutting weight improperly. Cutting weight--even when done correctly and safely--is a grind. Every minute of it sucks. So, why bother? To get the competitive edge, course. But the competitive edge in the white belt division (at a local tournament with one or two people in your division). C'mon now. It's too soon, too serious, me thinks. If you haven't already attended a few tournaments and competed with some success, don't even think about cutting weight.
It will be a distraction and a detraction that will discolor your experience (souring everything unnecessarily). Competing should be fun. Don't forget that aspect along the way. Keep it fun while keeping your extra pounds (at least this time around). Let the upper belts worry about their weight cuts when something more substantive is on the line. For now, take it in, learn from the experience, eat well, and stay hydrated at all costs. Most importantly, remember this is a hobby for many of us (even if hobbyists come in degrees as well (see here for details)!
That said, good luck to folks who are competing at The Newbreed Ultimate Challenge in Columbia in a few weeks. Hopefully, I will see you on the mats!