Was she trying to sleep with me?

well it difficult to tell she might have just wanted to get to know you better considering she is counseling you and if she was sarcastily or talking in that tone "if you know you know" then she could have been wanting to hope this helps

She would always flirt with me

What sort of flirting? What would she say?

I can see where you're coming from but to me, if she is your counselor, maybe she was being sweet to try deepen your bond so that you can be more comfortable being honest with her. There's no point debating this on here, but I would ask her if it bothers you. But make no mistake about it, if she is flirting with you it is quite inappropriate considering her position

This girl is 26 and I was 18 and she went to my house for a counseling session because she was my councelar. She went inside and I told her that I was going to get something from my room. She then goes inside my room and tells me "your not gonna give me a tour" my friends told me she was trying to sleep with me what do you think?

This is my personal advice but take it as you will.
As you are an adult, unless she is repulsive to you or within prohibited categories, never turn down box.

She was flirting with me since I was 16

I'll tell you what I told another student who was in a similar position. This is not a flattering situation to be in. She's your counsellor, and she's taking advantage of a teen in a vulnerable place. It doesn't matter if you're 15 or 18. She shouldn't be doing that and you shouldn't see this as a compliment. I can't imagine my counsellor taking advantage of that trust to try to sleep with me. That's terrible. If someone's a counsellor, they have to be very messed up in the head to make advances on the kids under their care.
What I'll suggest is that you set clear boundaries and keep your interactions professional. Don't let her into your bedroom again. If she keeps pushing the line, tell her she's making you uncomfortable and let a trusted adult know what's going on.

well it difficult to tell she might have just wanted to get to know you better considering she is counseling you and if she was sarcastily or talking in that tone "if you know you know" then she could have been wanting to hope this helps

was it like play flirting? or real flirting like trying to get with you? and what should she say/do if your not confertable talk here just pm me I'll respond

well some of the things you pointed out are just play full I think like the nickname idk why she wouldn't anyone else to know following you in insta is strange if anything I would sugjest posting a pic and seeing how fast they like the post and comment it can show you if they actively look at your instagram. going to graduation not that strange if she is a teacher/ counsular they might have to go. asking if your in a relation ship I mean she is your counsular not that strange unless she looked happy after you said that you should say you have a bf/ gf idk you idk what way you swing and see if she is happy or sad about the news bragging to her friends is strange to say the least like she wants you to be her daughter or something. sitting next to you might just be her not knowing anyone there but idk. but begging her boss to be your courser is weird and the affecting at 16 years old is also pedo like this can also be kind of stalker vibes. if there more info like that I could see what it could mean always good for extra eyes in situations like that if anything new happens let me know hope this helps