When to get dress alterations done?

Hello everybody!

This is my first time posting on this sub. Also, I’m on mobile so apologies for any formatting issues.

I’m getting married May 24th, 2024. I bought my dress a year early back in May this year. I need the straps shortened, the mesh brought tighter in on the sides so that my breasts don’t sit as far out (the last picture is of me trying it on with a bra, which I don’t want to do on my wedding day) and the skirt hemmed as it’s a bit too long. There’s a also a small rip in the mesh at the back and a button at the very top by where my neck is that’s missing. I was wondering when I should send it in to get these alterations done. I was thinking early April? I’m working out and want to lose some weight before then, especially since my breasts go down in size as I lose the weight. I’m thinking April is enough time to hopefully get them done, with some leeway in case I need to do extra ones after the fact?

Also, if there’s any additional alteration suggestions you have, please let me know! Thanks a bunch in advance!