How can I please him?

So me and my man have been dating for 4 months and I have given him oral and a hand job but he never seems all that satisfied. He has never cum and he keeps telling me that it is fine but it is really getting me down because he has been able to please me but I haven't been able to please him. He is the first guy I have ever attempted to please and I am not personally ready to have sex so that is not an option for me. I've looked online and tried a few different 'techniques' but none of them have worked. Help please