Technical analysis

Hello, guys new to forex trading. Hope all of you are staying safe.
My question

Are support and resistance lines meet to be drawn once on the chart?

I don’t understand your question. Do you mean once they’re drawn, do they stay there?

Personally, I don’t often draw them in, I just use where they’ve recently found support and resistance. If the price is higher or lower than anything on the screen, then I draw them in.

Yes, when they are drawn

On my platform (MT5), they stay there until I close the chart. When the terminal is closed and opened, they stay there. I think you can save them as a template for each pair if you ever want to get them back.

Thanks for your opinion, how often will I have to change them?