Give me an advise

What should my next steps be?

Personally, I want to use an ultra boost after reaching level 200, but I only have about 100M right now.

I’ve been bossing and looting, earning around 50k$ per day, but it feels far from enough.

I’ve spent a bit of money in the past, but I don’t want to invest large amounts anymore.

I haven’t tried Raven looting yet, but I think it might be impossible for me.

How can I earn a lot of money and efficiently upgrade my specs to enjoy various content?