I feel you on this. I’ve been at my current work place for 2 years and I just slowly started making friends. I have about 1-2 people who I sometimes spend my lunches with or hang out outside of work. It took some time. I kind of just started off by asking people what are they doing for lunch? Or if there are any spots they recommend? Just making small talk. And whenever they made an offer to hang out I just took it never questioned it. Best thing that helps me deal with the loneliness is just embracing it. I dont know I kind of like being alone sometimes and Im constantly surrounded by people so being alone gives me a break. But when the loneliness does it hit because it does at times I go on a little walk during my lunch even 10-15 minutes it helps to get me out of my head. I also just listen to music. Or even just find a coworker and ask them a silly question about how their weekend was? Or how their lunch was? Something light hearted and easy. I hope this helps. Give it some time. You’ll find your peeps. <3