Last night if BC pills

Im beginning to freak out about all of this! I go back to the doctor tomorrow and start stims on Monday. This is my first time and I'm not really sure what to expect! I haven't gotten my medication yet because of a mixed with the insurance so my doctor is giving my some medication to hold me over until it can be shipped on Monday. I'm starting with GonalF 450 and Menapur. I was going to take an injection class but I was suppose to wait til I got my meds and now it's too late. How is it mixing the meds and all? Can I handle this?