2*-->3* transitioner seeking advice

Sweetsawce

Hi everyone! I'm currently in the 2-->3* transition phase and I'm looking for advice on how to move forward with my current roster and whether I need to change my playing habits. Here's a brief description of how I use my time on MPQ:
-Currently I try to be active in both PVP and PVE (and now DDQ). I'm currently at 3100 pvp points and I'm aiming for the 4000pt heroic 10 pack. In the current PVE EotS event, I'm sitting in the T10 and hoping to maintain that.
-I'm sitting at 40k ISO and 125 HP

I have an extensive hero roster (32 spots) but here are my significant ones:

L94 3/5/5 (2 star)
L94 4/4/5
L94 3/5/5 (2 star)
L94 4/5/4 (2 star)
L94 5/5/3 (2 star)
L94 3/5/5 (2 star)
L94 4/2/3 (3* patch)
L89 3/2/2
L63 2/2/2
L57 5/4/4 (2 star)
L54 3/5/5
L54 5/5/3 (2 star)

I got a few more 3*s but they aren't covered much/used much.
Mystique L66 3/1/0
LThor L45 1/2/1
CMags L43 2/2/0
Hulk L40 4/0/1
Doom L40 0/2/3
LCap L40 1/3/1
Groot L40 0/2/2
Hood L40 2/1/0

PVP
-I'm having difficulty reaching and maintaining 400 points for the last 3 PVP events (patch, cmags and gamora) as I hit the 166 wall quite early. I think its probably due to my MMR rating (I've never tanked and I play shield sim too).
-my usual climbing team consists of the loaner + patch + 2* daken. Once I hit the L94 teams, I switch to Ares/OBW. I tag in 2* Thor for Ares and Dakenf or OBW when they are down.

PVE
-my go-to combo is Storm/Mags + Thor/Ares/OBW/or any other boosted 2*s

I appreciate the help everyone!

Unknown

Which slice in PVP are you joining? The news out there is that the first 3 slices are easier to place than the last 2. Do not join the slice until you're ready to climb. It helps if you join around 7-8 hours before the slice ends. I'll normally push through 400 to 600 points within the final 3.5 hours before the slice ends and use a 3 hour shield. You have all the useful 2* so 500+ points should not be a problem as long as you shield once.Good luck!