So many repairs

The first person who came to take away the fan and check on the hot water heater discovered that something was actually broken on it and he had to call in a plumber. Before he left, he looked at the shower and commented that the whole thing probably needs to be replaced. He also noticed the water spots on our ceiling and said they'll come repaint. The plumber came and replaced whatever ignition/pilot thing that was broken and then told us the hot water heater is 13+ years old and needs to be replaced soon. He agreed with the first repair guy that the shower needs to be replaced. 

I'm thankful it's not my house to repair but also a little worried that all these expenses will make our rent go up a lot next year.