I have experience on vSphere 7, My wish to take exam on VCP 7 get certification , My worry is VCP7 going to expire soon in next few months. Please suggest the best which is VCP 7 or can i directly prepare for VCP 8.

 I have completed course on vSphere troubleshoot 7

Note I understand i can write both VCP 7 and VCP 8. Need suggestion which is better approach