Physical addiction vs Chakras?

[AnthroHeart]

But a chakra cannot be balanced or opened mechanically as a lasting thing.

I agree. I have worked on overall balance instead of focusing on each individual chakra all that much.
Yes if one chakra seems way out of line you can bring it back in line, at least temporarily.

But I found something that I really loved, and I just let that love take over me and fill me.
That opened me up. It was about allowing rather than forcing the heart chakra into a certain openness.

So yeah, I'd focus on overall balance. And how we respond to stimuli. Does it rial us up, or are we at inner peace?
If someone makes you mad, recognize it's the body's response, and just observe the anger. If possible, love, or send love to the one making you angry.
Just intend it. That helps. That's what worked for me.

I'm learning more, but it's ok to say that I don't know.

I like the saying "Be like water." It doesn't resist, it just flows like the Tao. The Tao just IS.

These work for me. They may or may not for you. I don't know.