Hello Linny JC,
Thanks for using Apple Support Communities.
I see that you have recently upgraded to 9.3.3, and now you can't see the last two pages of apps on your iPhone. I know how critical it is that you have access to all of the apps on your iPhone. I can help you find the best resolution to this issue.
First, try to give your iPhone a fresh restart, and then test to see if you are able to see all pages of apps. This article will help:
Restart your iPhone, iPad, or iPod touch
Next, make sure that you have a recent backup of your iPhone's important data. The following article will help:
How to back up your iPhone, iPad, and iPod touch
If you already have a backup, try to update the iOS software, and then test again to see if you have all pages of apps. There is a new iOS software update available (9.3.4), Update the iOS software on your iPhone, iPad, or iPod touch - Apple Support
And finally, use the following article to restore from that earlier backup, and see if you have all the pages of apps:
Restore your iPhone, iPad, or iPod touch from a backup
Best Regards.