Berserker Gearing Help

Hello all, I need help with my Berserker since I'm only at 66k fame, and I can only do Venus C1. Here's my current gear:

• Cleansing set - Epic V (I don't have enough resource and gold to go for amp or high reinforce)
• Left: 2/5 Desire (planning to go full Desire)
• Acc: blessing bracelet, creation necklace and ring (not epic yet), is this BiS?
• Sub: I don't know what skill level to get (I saw mostly 35, 75, and no level)
• Buff set: full Dark Fragmented, but no title

My pet and title are pretty outdated, but I don't know which one is the best to buy

• Pet: Light Shooter Girl (or something like that)
• Title: nothing good, so I'm using the one the event give

I have 25mil total. What's the best use for that. I heard the newest avatar set is good, but I don't think I have money to buy it, and with all of the RNG. Back then, there was no RNG at all, so I'm really surprised.

Is there anything else I should be doing? Is there any recommendation?

What should I be aiming next? Please be specific since this game is getting pretty complicated now with tons of item, and the map is getting huge.

Thank you so much!