Hi. Great resume - awesome to see very strong internships though I think you can cut them down to a shorter size to get to the essense and create more room for other things.
I have checked the resumes of the MIM applicants who got admitted to INSEAD and LBS programs (we have a handful of those listed on the MBA App Store) and the sections you do not have are:
1. Publications
2. Relevant Coursework
3. Achievements (this could be awards basically, though you have it as only extracurricular; these could be professional as well)
One of the resumes was in 2 columns to be able to fit in more things and it was done quite well.
The other one was quite simple and did not have as much or relevant course work which tells me that there is not a perfect resume that guarantees admit but perhaps is more personal based.
In terms of conferences, I think it is a nice touch but in general if you have $200, you can usually attend as a student, so it highlights your interest in the field but is not in any way a high effort achievement or anything like that, so I would not worry to create space/room for them.
P.S. it is impressive you have CFA 1, that's not that easy and a pretty important achievement.