I can't get anything to work on Magik, please help. D3

Yesterday I hit level 11 on Magik, but I still feel completely unconfident. I can't even give a proper replay for review — all my games are inconsistent. Either I go 0-10 and there's nothing to discuss, or I win with a score like 13-10 and I don't feel like I contributed much — maybe 1-2 useful picks per game. But I'll still give 3 codes — pick any and give me some advice, please.

​

50345633736 — win, but I played terribly

​

50245333102 — also a win, not as bad, but I still feel like I did way less than my teammates

​

50901624380 — loss

​

Before this, I put a lot of time into Rogue (about 80 hours), and I'm used to relying on vertical mobility and a big HP pool to literally jump over the frontline onto enemy supports and dive that way. Overall, I felt like I saw more routes as Rogue. On Magik, I get lost a lot and often don't understand how to flank anyone on these stupid maps, which all feel like one big choke. Magik also has no vertical mobility other than her E, and I don't really understand how to disengage from fights.

​

That said, I can brawl with my team on the point pretty well, but I don't always get a team that plays a good brawl comp for that, and even then it's hard to get picks.

​

I usually don't even know how to use her ult effectively. I understand you want to use the charged slash and then dash, but it feels so clunky and slow. Most of the time I just pop ult to force the enemy supports to use their ults, so my team can clean up afterward.

​

Give me some advice, or share some good gameplay breakdowns for Magik, please.