I Phone 5S email Toolbar is no longer there?

I use an I Phone 5S for work and a few days ago the ability to reply or forward an email is no longer there before when I would get an email I would just touch the toolbar and it would offer me options like reply or forward to that email now when I get an email there is no toolbar after opening that email. I am not much with Smart Type Devices like the I Phone and not sure how to get this Toolbar Back? Step by step instructions would be helpful I am a novice when it comes to devices like the I Phone. What can I do to get this back and working??? Again not familiar with how to set up or change setting I was handed the phone and it was all set up. Never had to do anything and still learning how things work with it.

Any help would be appreciated.
Newaygo1

You lost me when you talked about home screen, This is what I do to access the I Phone slide to unlock enter the code and it opens I push what I am looking to use Phone, TXT Message, Email, Camera, Compass, Time / Stopwatch or Internet to search out something. Sorry but I am not good with the current Smart Phone terminology or uses... Guess I will just find someone that knows how to fix it again you lost me with your first sentence some are not much with technology my personal cell phone is still a flip phone have not use for all the extra stuff and could not afford a data plan smart phones have just need a personal cell for emergencies nothing more so I am already lost as to the steps you suggested. Guess I need someone that has a working knowledge now I am even more lost...and over my head with what you talked about

Thanks guess I am done here... Just don't play with smart phones like others do... to know much with one.

Newaygo1