90 day probation period

Hi guys! Recently started at Costco a couple weeks ago. This is maybe my first month in? I had a conflict with another coworker my first week there, and I didn’t handle it as appropriately as I should have. during my 30 day review I owned up to it and was honest about it and took ownership without them mentioning it. It was my fault and I knew I was in the wrong. Since then I have had a couple conversations where they were talking to me about not taking over others work and “ letting the managers be the managers” I have a manager, though, however, that I feel they are not very fond of me and sometimes always seems frustrated with me more than others, I feel as though they’re always looking for something to get on me for and it feels pressuring, I had my 30 day review within about 14 days of working there and all of my coworkers had their 30 day review today. I’m sure I’m going to be fine. I’ve been trying my best and I work hard but I’m a little nervous about my 90 days and passing it, I’ve still got a bit to go. Any tips, encouragement, wisdom, or comfort? I had a coworker. Tell me if they were going to let me go. They would’ve by now, but that doesn’t make me feel any better. I just wanna do my best and sometimes it seems like no matter how hard I try it’s not enough. Any advice is appreciated! My department is stocking if this helps!