So I decided to go with Johnathans program(as am a man)but he doesn’t have a complete warm up routine.I noticed that Camille's day2 is a daily warmup routine. Is it a good idea to use that as my warmup and continue taking Jonathans lessons?

By the way my practice structure is; Camille's day2 warmup and Johns next lesson+Learning a song I like. Is that alright?

Hi, Alexandros!

Yes, that's a good plan! You can also check out our male warmup routine here: https://www.30daysinger.com/tutorial/low-voice-daily-routine/1. 

Along with all that you've mentioned, I recommend beginners also work on pitch matching by playing a pitch (see here for a virtual keyboard with scientific pitch notation: https://www.harpkit.com/online-tuner) and matching that pitch with your voice (see here for a chromatic tuner that works with your device's microphone: tuner.ninja). 

Best,

Camille