spread yourself too thin
US /sprɛd jərˈsɛlf tu θɪn/
UK /sprɛd jərˈsɛlf tu θɪn/

1.
dispersarse demasiado, abarcar mucho
to be involved in too many activities, so that you cannot give enough attention to any of them
:
•
She's trying to manage three projects at once, so she's really spreading herself too thin.
Está intentando gestionar tres proyectos a la vez, así que realmente se está dispersando demasiado.
•
I had to quit one of my volunteer jobs because I was spreading myself too thin.
Tuve que dejar uno de mis trabajos de voluntariado porque me estaba dispersando demasiado.