Seconded. You need a good portfolio or a decent reputation for a serious investment or financial manager to handle your money. Online content creators (esp. lewd), I can't imagine them being sought out by any investor who can maintain a comfy income or a guarantee future wealth.
There aren't enough details to make a sound assessment (nor am I even qualified), but if she stopped making all at once, I doubt she can keep up her current quality of living with what she has in the bank.
See how many celebrities went broke and filed for bankruptcy. And to celebrities, they can bounce back, if they struck advertisement deals, some make money off of royalties. Whereas online content creators........... not so salvageable.