See what you think in your heart. If you think there is no difference between the present situation and becoming a full member, just make do. If you think that your work is excellent enough and you have the necessary conditions to put it right, then you can go to the leader and say, be generous, have a proper tone, be neither humble nor supercilious, and let the leader know you and appreciate you. Now society needs to show it.
Oil; Fuel filling; Make greater efforts
I wish you success!