how do i submit multiple jobs with nohup?

how do i submit multiple jobs with nohup?

I have several jobs which i would like to submit in a certain order.
First, multiple jobs like cal1st_1.sh cal1st_2.sh .....cal1st_10.sh are
submitted at one time and processed simutaneously. After all of them are
finished, i have a job called post_process.sh. Then, multiple jobs like
cal2nd_1.sh, cal2nd_2.sh ....cal2nd_10.sh, then post_process.sh again, I
need to do this for four times.
I tried to write a script get_final.sh like
#!/bin/bash
./cal1st_1.sh & ./cal1st_2.sh & ./cal1st_3.sh...... & ./cal1st_10.sh
./post_process.sh
./cal2nd_1.sh & ./cal2nd_2.sh & ./cal2nd_3.sh...... & ./cal2nd_10.sh
./post_process.sh
and run it with command: nohup ./get_final.sh &, but it seems doesn't
work, sometimes post_process.sh started even cal1st*sh weren't all
finished, sometimes cal1st*sh weren't processed simutaneously. Can someone
tell me which part of my codes is wrong? If you have any questions related
to my codes, please leave a comment. Thank you.