I need to find a middle ground for mmr...

The cycle repeats every few days..

I win a good amount matches in a row, and get placed against higher and higher ranked people.. then I lose a good amount of matches in a row and get so tilted/annoyed that I quit playing for a day or two. then I come back and win a good amount of matches in a row, so on and so on.

I notice most of my friends have win one, lose one, win two, lose two and that looks awesome. How can I find that healthy medium they have?