MacOS High Sierra Freeze

I recently upgraded MacOS High Sierra (Version 10.13.3) and since then my laptop freezes every few minutes with a rotating ball. The freeze stays until I manually shut down laptop with the on/off key. I only use laptop for office email and nothing else. I bought this laptop in September 2017. Please give me a suggestion on how to fix this problem.

Laptop Description-

MacOS High Sierra

Version 10.13.3

MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)

Processor 2.3 GHz Intel Core i5

Memory 8 GB 2133 MHz LPDDR3