I'm of the strongest conviction that the fact humans have a pair of hands, left and right, has divine meaning in this question.
Ultimately, the division of RHP vs LHP, along with the simplifying explanations of "unity vs. individuation", "devotional vs selfish", etc., and the clean split of famous practicioners into these categories have the approximate depth of a kindergarten picture book (and a particularly didactic one). I'll try to give you my current vague understanding as a simple, conflicted lover of God.
That you started working with the right hand, I assume you are seeking purification and "sight of God". My recommendation is to not make the mistake of assuming a set list of practices will get you there - in my view theurgy is primarily a mindset of humility, honest curiosity and love (of life, of God, of the Work). You don't do it with the intention to "get somewhere" (that's your left hand, also needed of course), but to "be the sort of person who does these things".