Boundaries/Accountability?

When it comes to boundaries, I am completely lost. A friend recently came to me and asked for advice on how to have boundaries, and I answered the best I could albeit catered to her situation, but it made me realize that I have no idea how to have boundaries or even what they really are. 

I'm not afraid to say no, so maybe that is a boundary, but I am such an open book and I would love to sit down with a stranger or a friend and read to them my journal. I think because I feel so held and cared for and known by God, none of my "innermost" thoughts and feelings seem like a big deal.

And likewise, I want to hear about other's innermost fears and thoughts and stresses. I want to so completely know others, and listen, and I feel like I can do that because none of their stuff feels too heavy since I'm not taking it on. Maybe that's another boundary?

I throw my heart into everything, get attached to ideas and people so quickly, but I am not emotionally fragile or unstable. Even when I am hurt or disappointed when I didn't need to be, I can't put up any sort of defense or wall. I've tried, I can't do it, which might be a lack of self-discipline, but it doesn't feel like it. It feels like I have an inner security that can't be shaken by anyone or anything, by any feeling or hurt. I think there is a confidence that gives me the freedom to throw my heart into things. I have the greatest foundation; the foundation that is available to everyone, the greatest Comfort and friend. I feel so blessed to be known by God, and I don't feel like I need to worry about boundaries because the Holy Spirit will inform my life and reactions, what I say yes to, what I know in the moment. If something feels wrong, He will be there, supporting me and showing me what to do.

I guess the Holy Spirit is my boundary, which maybe is a naive thing, but that's okay for now. He'll show me if it needs to change.

Sidenote: I am so comfortable with naivety. I so fully trust God and His perfect Word to show me what I need to know. The Holy Spirit has been so active and truthful to my heart, and I do not doubt Him for one second. I want to make more and more space for Him in my choices, I want my own reasoning to become less and less. I'm finally understanding the prayer "less of me and more of You", not because we are meant to be puppets or having no part in our own life, but because His way is so wholly and completely better and perfect in each moment. He makes everything better. That is why my boundaries, my joy, my defense, my hope, my security will be in Him: He is the most perfect answer and solution to every second of my life. He makes it all better. Even the moments that you don't think are anything special, He make it a Moment, He can make it better. Our whole lives would be remarkable if we made room for Him in it all, even the dull parts. 

Sidenote sidenote: When I say that I am trusting the Holy Spirit to lead me, that is very true, but I also have people in my life that I know will hold me accountable, as well as the Bible. As close and active as the Holy Spirit has been in my heart, it is still not face to face, it is not an audible voice in my head or even always an unmistakable leading, so out of wisdom, I have to be open to the words of those who have the position of speaking into my life and the tangible Word of God. If you feel like something the Holy Spirit is leading you into is against the Word of God, run the other way because that is not the Holy Spirit. God will never contradict Himself. We can rely on the Word of God without a single doubt, and we have to be accountable to it. Yes, follow and trust the Holy Spirit's leading, but don't just be a feather in the wind, have some grounding, something concrete you can lean on if you're unsure.