With the end of my mentor program is also the start of a thesis cooperation I have through my mentor started cooperation with the owner of an ecommerce website where I am going to research on their new single page checkout It is going to be amazing J

Could you correct the punctuation please?
With the end of my mentor program is also the start of a thesis cooperation. I have through my mentor started cooperation with the owner of an e-commerce website where I am going to research on their new single page checkout. It is going to be amazing J