My simple rrat is that with all her goals achieved she's feeling a bit empty and bummed out, because once you reach success you realize it's hollow and empty like everything else in life. She's still a bit too young to properly parse and understand these feelings and come up with ways to deal with them. Most people never seem to get a feel for this in fact, so it'll be interesting to see how things go from now. Simply put she might be burned out and at a loss on what exactly to do now. On a more basic level, it's entirely possible she's simply enjoying herself and the increased ability to say buy things she wanted and so on might be cutting into her time. Or equally reasonably she might be getting things in order she was never able to before. Money is wonderful because it solves issues and makes problems go away. This applies to (you) as well. Get a job.
There is however an intrinsic problem with vtubing at work here. We are all eager to support and worship the new girl, who walks unsteadily and is unsure of herself. It's the moe appeal. This appeal however cannot last - the little girl grows up, or in this case either fails utterly or becomes an established chuuba. Gura went way beyond that. This leads to a change in perception, for she was once a starry eyed amateur but is now an established professional, and the moment a person becomes aware of this their whole way of doing and understanding their thing changes, and this is inevitable. Ergo the danger! This time is actually crucial for Gura and will make or break her long term. It is a very dangerous time.
Gura, you cannot allow yourself to rest on your laurels. This is an extremely competitive field without mercy. OTHER WOMEN will tear you apart sooner and more viscerally than any anti, troll, or us, your core audience. My advice to you is to first and foremost come up with a reliable, robust streaming schedule as soon as possible. In terms of content do not worry too much about whether it's experimental or traditional - simply DO. Stream like an amateur! Laugh, cry, tease and bully. Be yourself, your actual spontaneous self. It is authenticity we seek. No matter how hard it is for you to put yourself emotionally out there, you must do it, because no matter how shittily the antis, trolls, SEA and so forth interpret that, your core audience and the actual fans will only grow more attached to you. Nobody grew and remained without enemies. "Many enemies, much glory!" as Mussolini used to say.
In the end, everything is up to you Princess. Just remember - this seeming calm and smooth sailing is treacherous and dangerous. It is time to gather up your strength and go on the offensive. Do not lose initiative.