How long does it take for an existing team to warm up to new members? Or should I really look for something new?

Good evening. 🌇 I've been working in the new team for about two months. I'm the youngest member, and my colleagues have been working together for 10-15 years, so they're good friends. At first, everything was fine. But then the situation began to change. At first, they became more distant, then came unpleasant questions like:…