feeling lost

I am a senior in a chapter here on campus, and I felt exactly how you describe when I first joined. I nearly dropped my sorority, but I am so thankful I didn't. Many of my best friends are not in my chapter, but I also have met so many amazing friends in my chapter. You do not need to limit yourself to just those girls. I did not feel 100% comfortable until I was a sophomore, it takes time. It is great you are reaching out. Keep doing that! Give it time. I know it can be very frustrating. Although you have 200 or so new sisters who chose you to be their sister, that does not mean you are going to find those friendships with them in a month. It is not a mistake, you just have to give it time.

So sorry to hear that, that really does suck. The initiated members of the chapter should definitely be making more of an effort! It sounds like you're doing a great job doing even more than you really should have to be doing, so I commend you for that! I would recommend going to an executive member and talking to them about this because it's definitely something they would want to hear/fix. I know my chapter has an officer dedicated to member issues specifically, I'm sure most do!
As an initiated member it can sometimes be hard to make sure ALL of the new members are being welcomed because there are so many, but we definitely want all of you to feel welcomed and to spend time with us. It's just easier said than done sometimes

I understand your frustration 100%, but don't forget that this is college and most girls are crazy busy all the time. Maybe pick one girl closer to your age (pledge class above you) and try to get closer to her. It will help you to find a big and she'll ask you to hang around her and her friends more often. Once you have big little reveal you'll have a family and can meet the older girls! Also know that once you go through your first recruitment on the sorority side instead of the pnm side, everyone gets really close!