You could finish the last week of #37 then start the second block of mine. It won't make any difference though if you don't increase your calorie intake.
Drink your calories in the form of shakes if you have a hard time eating enough. I had trouble gaining weight for a while. Finally I just added a big cup of milk to every meal. That worked for a bit then I needed more calories. I found ways to make my meals bigger. Then I started getting hungrier throughout the day and I added shakes between meals. Finally I got a bit fat and so cut back down a little. Pretty simple in retrospect.