*randomly arrives in this thread to post something about my tulpa, then sees opportunity for advice*
I have something in mind that I'm going to hopefully try soon. When I get in bed, but I'm not sleepy yet, just kinda on the surface tired but not enough to fall asleep immediately, I'm gonna try to connect with my tulpa then. I interact with him a few times during the day, in fact today he put his hand on my shoulder reassuringly when I was concerned about a friend online. and we communicate every so often by me thinking something (or whispering it aloud if I'm alone in the room XD) and him responding via body language/expression (he's not vocal). But there's never a great length of time when I can just sit and be with him.
I did my process a little differently. I didn't actually create a real wonderland at first, like an actual setting mapped out in my head or anything. What I did was I created a sort of "alternate plane" that's vaguely purple in my imagination but is basically for him only. It's where he goes to sleep, and when he needs to go somewhere else for a bit.
It's currently day 18 and only now have I decided to create a separate little world where he and I can both hang out. I'm starting it out as a meadow-type thing, to go along with the lyrics of a song we both really like, but I plan on leaving room for change. E.g. if one day I'd rather us hang out in a building then it'll become a building, or if I don't feel like having a lot of light then it'll be just a little cloudy. If my imagination is up for that sort of thing.
Anyway though, the point is that I'm going to try to do that at night, when I get off the computer , get in bed but I'm not ready to fall asleep yet. If it works, it'll be the perfect time to connect with him in a way I don't get to in a regular day. Maybe you could try something like that, since bedtime is pretty much the only set amount of time (in anyone's life, I would think XD) we have to dedicate to one activity, whether that is only sleeping or tulpa connection and then sleeping. :3