im tring to do a hit style training but im finding it very hard to do all these exercises in 1 day, like im starting weight lifting again from like a year layoff and my heart isnt in good condition. even putting onm weight gets me breathing hard.like if i do squats im out for like 10-15 min. then i can do the next exercise very slow like im tired. even pulldowns do this to me. i want to keep doing hit but can i di it like a 4-5 day split? or what do you suggest?

thanks,
big calvin