I felt sad that he had left, but I had to snap out of it and get on with my life.
If someone who is depressed snaps out of it or snaps out of their depression, they suddenly become more cheerful, especially by making an effort. Come on, snap out of it! Often a patient cannot snap out of their negativity that easily
snap out of something: kendine gelmek, toparlanmak
الواصلة
snap o·ut of so·met·hing·: ken·di·ne gel·mek, to·par·lan·mak