Help meh all ya'll tough @$$ fighters?

I'm going to start muay thai kickboxing.I've trained in tae kwon do for 4 years and I know it wil be a difficult transition. I have a 100lb punching bag,ankle weights,wood boards i can kick. Ya'll help me come up with a heavy work out plan to help me get ready so i wont get my a$$ kicked lol.Thank you ya'll :->