I agree with the previous posts. Look on the bright side: at least you will be getting a fresh perspective.
I had a variety of instructors when I first learned to fly in gliders; I flew with whomever was free at the time. It didn't seem to do me any harm.
When I was learning to fly airplanes, there was a change in ownership at the flying school, and my instructor was not kept on. I waited a month for him to secure new employment, and then went back to the school and after meeting with the CFI and complaining about the lack of progress, I was assigned a very experienced instructor who got me ready for my flight test with only two more lessons. In hindsight, losing the first instructor (who was a good pilot, but a poor teacher) was the best thing that could have happened to me.
Anyway, there's nothing that you can do about this, so just try to keep your chin up and make the best of it. As you gain experience, you'll find that challenges like this are common: e.g., the weather is poor for weeks on end, your instructor gets sick, your favourite airplane is down for maintenance, you finally start making rapid progress but then can't get out to the airport because of job or family commitments, etc. Try to persevere; the headaches are annoying but they are vastly outweighed by the fun of flying.