Being uncomfortable doesn't feel good. I don't think this is news to you.
Discomfort evolved as a voice that says "let's get outta here!" and in most cases it's right. It's telling you you're on a path that leads somewhere new and unfamiliar. We like to stay in the places we know, but we won't grow without venturing out from time to time.
It's easy to talk about getting outside your comfort zone, but it's a lot harder to hang out there for a while, in an unfamiliar part of your psyche where you don't know anyone and the food looks weird. Everything in your body is telling you to turn around and head back. But you can shush that voice, soothe it, take the lead and tell it you know what you're doing.
It's not easy at first, it takes practice. Building this skill is important, and understanding the feeling enough to tell the difference between bad discomfort and good is the first key step.
At some point you get comfortable being uncomfortable. You'll develop the ability to step outside yourself and observe your discomfort with dispassion. Develop is the right word, it doesn't happen quickly or without effort.
Do this enough and you'll be able to identify it as a signal. "Oh, I've felt this before!" you'll say. You'll recognize it as a precursor to change, but change which you have some control over. You never have full control, but that becomes part of the appeal! With this change comes growth, opportunity, deep satisfaction, and joy.
Like a lot of things, it goes in cycles. You can't be in a constant state of discomfort, you need to recharge. The thing is, when you spend enough time in an unfamiliar place you start knowing your way around. You see some friendly faces and you devlop a taste for the food. It starts to feel familiar, and your comfort zone grows.
Put down roots. Spend some time making it feel like home. Enjoy the parts that don't feel like home. Let yourself get comfy, but always be ready for that voice to take you somewhere new.