How to Get out of a rut?

A rut being a losing streak that doesn't seem to end. In all honesty, it's not that I'm trash, or my teammates are trash, but it's just a flat out losing streak. I take a good week off from league to come back to the losing streak for some reason. This losing streak made from Gold 5 to S1, and it is really really hard to drop rankings unless you lose as badly as I did. I'm just wondering if anyone else has been through this losing streak and how to get out of it as well