What to do in this type of situation

hey everyone: 

i'm hoping that all of you are doing great and the new year is good so far so currently i'm facing one of the toughest challenges when it comes to vocal training and i would like some help: 

so i work in a company where i'm required to speak with clients and guide with all that is estate or land related so i used my voice constantly for an average of 8-10 hours a day and when it comes to my training routine i can't get my voice out and most of the time i start feeling all kinds of pain throughout my throat which prevents me from going on and to be honest i'm afraid of pushing it so that i don't sustain any damage with that said what is the best solution for this kind of situation 

Thanks 

Hi, Saber! If pain persists, please bring it up with your doctor and consider a referral to a laryngologist to see if there's any underlying issue to take care of. 

In the absence of any issues, I'd recommend vocal pacing as much as possible (taking breaks), vocal rest when your schedule allows, staying hydrated throughout the day, and frequent vocal "cooldowns" (as simple as some sirens or glides with a straw) to help take down swelling. Please see this video for more advice on vocal health for speaking: https://www.youtube.com/watch?v=3eB5dGYVvI8. 

Thank you Camille for the advice it is important to point out that before talking this job i was able to finish my vocal routine no questions asked but it's been 10 months since taking the position and whenever i try my daily routine my voices strains easily i can't get to my higher range like i used to sometimes i end up coughing or the  vowel is interrupted midway and i'm afraid if this keeps up that i lose my vocal progress that i've maintained so far 

I'm sorry, Saber! As recommended above, please bring it up with your doctor and consider a referral to a laryngologist to see if there's any underlying issue to take care of.