Last week I declined a partnership with one of the biggest companies in my country. We really needed them, yet, they abused and asked for to much. We declined and thanks to that we had to make a new roadmap for the project.
Even tho we declined something that we really needed, we feel pretty good about it. My advice is to never accept something just because you need or because you want. Look at it in a long term. Valuate yourself, your knowledge, your passion and your project.
Good luck everyone.