Is some better than none?

Hey all, hoping for some guidance here from people with experience getting this therapy. It has been suggested I do this therapy but I can't afford the whole treatment. I got the place providing the treatment to agree to do just do one round for starters, I think it's two infusions. Is that a waste of time and money or would something be better than nothing? Does it matter depending what the treatment is for? I'm new to this so I'm sorry if I'm asking seemingly obvious questions. Thanks for your feedback.