Help! Having to repair broken sprinkler lines every year even after winterizing.

Every fall I pay to have my sprinkler system blown out and every spring I have to pay someone to come out and repair multiple broken lines to get them working again. I have changed companies thinking they weren’t blowing them out properly, but it doesn’t seem to make any difference. I pay around $1,000 to have them repaired every spring/summer. This can’t be normal! I’m a single mom working two jobs just to make ends meet. I’m trying so hard to keep my lawn in decent shape but it’s too much. I have learned how to repair lines myself, however, with the two jobs I don’t have the time to do it. What do you think the issue is? Would it be more cost effective to take out a loan and have the entire system redone? I’m at my wits end. Help!