Definitely you can. First of all previous experience is not important for learning our style of Taijiquan. Secondly, what you have learned before is not essential either. Thirdly, how strong you are is not a factor.
Previous experience (positive experience) is always good to have. But in reality, this is hardly the case. Most prior experiences and training are only “practice makes permanent”. Not “practice make perfect”. If what you have done is done correctly, then it should be beneficial to our course. It should be beneficial to all you want to do in the future.