First of all welcome!
I would encourage you not to get too hung up on the idea of those products you used for a relatively short period of time having caused any long-term damage.
There are many here like you who had a relatively sudden onset of symptoms after use of some kind of eye product or systemic medication. However, I think that quite often there is an underlying condition (such as MGD) that simply makes one more susceptible to "triggers" of dry eye or other ocular surface problems - like a product you're sensitive to that triggers a reaction and starts things escalating. Blepharitis, MGD etc. don't just start up overnight. They may become SYMPTOMATIC overnight though.
Also note that it is common for one eye to be worse than the other.
The most important thing to focus on is really good diagnosis and what's the best course of treatment going forward.
The Dry Eye Zone