To be an Influencer you need time and to leave referrals too, it is difficult to do both because you need to do good work, in a group it is not that we make a cheap publication and we will have referrals, we have to do things well, we will register, we will do Activity , gain trust and then drop the link.
What do you mean by leaving referrals? To become a referral of someone else, so he becomes yours as well? If that is the case, I think it just doesn't worth, because to make an income from referrals you have to rely on quantity. You can't keep getting one referral per website, and that is, only if you sign up under his link in exchange of another site... Of course the quality of the referrals is also important, because they have to be active and deposit money on the platform you referred them to, but usually these people exchanging referral links in order to achieve referrals are in bad financial conditions just like you. You have to focus on people who are signing up because they want to use the service, and not because they also want referrals... There is a conflict of interests there which won't return any benefits for you after all.
It's indeed a hard task to complete, and to say the truth, many influencers are successful on this niche by deceiving and lying to their audience, what I think doesn't really worth after all, because the money coming from this will be a cursed one.