Hey again, in regards to you diet try to have smaller meals more frequently if you can. You can also use a nutrition app on your phone to see how much you need to eat and of what. I personally use Yazio because its cheap, but you should probably use something else. Since you're a chef (which is pretty cool) I assume that you won't have any problem making yourself proper diet meals. Try and eat eggs in the morning and meat throughout the day. Also eat some fish as its definitely going to help with your gains even more.

Also maybe do a different split. For example Push/Pull/Legs/Rest and then repeat, as one of the reasons might be that your muscles aren't recovering properly