I generally warm up everyday and if I sing just a few songs, usually the next day my voice sounds like I am horse. I'm pretty sure I am singing from my throat instead of my diaphram. What do you suggest from a lesson standpoint to get rid of this bad habbit.

Hi, Roger! I'd start by adding in a cooldown to the end of your practice. Here's a 4-minute cooldown for low voices. Your cooldown can also be as simple as a minute or two of gentle slides/sirens through a straw. 

I'd encourage you to send in a video for feedback as well, particularly if there's something you can pinpoint that causes you strain/pain in the moment: https://www.30daysinger.com/feedback. 

If you're concerned and the hoarseness persists, it's worth checking with your doctor to address any underlying issues that could be contributing! Our rule of thumb is: hoarseness for 2+ weeks warrants seeing the doctor. 

More to address strain/pain via vocal technique: https://www.30daysinger.com/tutorial/removing-vocal-strain