If I were Nishant's spiritual director, I would recommend the following:
1) continue writing articles if you think they will benefit souls, but use a pseudonym and do it anonymously (lest you be in it for your own glory and motivated by pride). HINT: if you find the thought of this difficult, then you are in fact motivated by pride. Force yourself to write anonymously to overcome the pride.
2) before writing an article, consider if there aren't already other articles out there on the proposed subject that are already very good, and even better than what you can write. If so, don't write the article but keep the link and be prepared to send it out instead of writing your own.
3) rededicate the time you saved with step #2 to prayer for the souls afflicted by a certain error ... and do it in a way that's unknown to anyone but your director
4) discern whether your drive to become a "missionary" with an "apostolate" is truly motivated by love for souls or, rather, by pride. If the answer is unclear, refrain from the activity, since activity motivated by pride will not bear fruit and can do harm to your own soul.
5) most importantly, do not undertake any such activities, writing articles or missionary activities, unless approved by your spiritual director ... who is in the best position to discern whether or not your motivations are pure.
These are the types of considerations a spiritual director makes whenever a soul wants to undertake some activity, perform some penance, etc. It's of utmost importance to filter out prideful motivatioins. Pride is in fact the most deadly of the vices and can sneak in very subtly, disguised as an "angel of light". It can easily appear to be virtue when it's actually a vice. Once it takes root, it can destroy a soul.
So, for instance, a spiritual director might test one of his "diriges". Soul comes to him stating a motivation to perform some extraordinary penance or dramatic undertaking. So the director would refuse the permission and gauge the dirige's reaction. If the dirige joyfully complies, then perhaps next time you would grant the permission. If there's pushback or resistance or even discomfort on the part of the dirige, you know that there's pride lurking there. That is why obedience is so important. It is most certainly a greater penance more pleasing to God to submit in obedience to NOT doing a penance than in undertaking a great and dramatic one or your own volition. Greatest of mortifications is of the will and of pride. Period.
So, above all, find a good spiritual director and submit to him.
There's a story about St. Francis. He had gone many years without eating meat. One time he and some of his brothers were guests somewhere, and they were offered meat. St. Francis ate it without hesitation. So his brother asked him, "Wasn't it difficult to eat it?" St. Francis replied: "Not at all. It would have been rude to our host and an offense against charity not to." So he wasn't the least bit motivated by his ego in having undertaken that penance and therefore was not the least bit upset about ending his "streak" (an ego thing).