How can I not get stuck in my mobile phone?

The slowness of the mobile phone is probably caused by too many cached files, that is, too many junk files. Just install an Android optimizer and clean up the cache files for your mobile phone, which will speed up the running of your mobile phone. The mobile phone should be cleaned regularly, otherwise the cache files such as SD card, SMS and Internet access (some of which cannot be deleted) will occupy a lot of mobile phone memory, which will directly lead to the card machine ~