I was in a similar position some years ago after breaking my neck in a car accident in Germany. Stay calm you have already started the process and soon you will be Tramadol free, it's not easy but will most likely not be as bad as you fear. You do need a bit of fortitude, so be happy with your decrease today, allow yourself some time to adjust to the decreased dosage, but also begin to focus on how happy you will feel when Tramadol free.
There are two issues you are facing - the mental and the physical. It sounds like you have the motivation for the mental part - but please be aware that Tramadol does mimic some antidepressants, so as you taper down be aware of your mood and feelings.
Your body is physically dependent on Tramadol, the main reason you need to taper down. Unfortunately, this is more difficult here than in Germany. In Germany you can get drops - liquid Tramadol - and you can literally decrease by a single mg. I do not believe liquid Tramadol is available here, though I am not 100% sure - perhaps @Sheryl can advise?
That means you are stuck with the capsules (50mg each) or Ultracet (37.5mg). Superficial research suggests you should not split an Ultracet pill in half - again perhaps @Sheryl can advise, that's a pity as it is easier to taper into ever decreasing amounts.
But if you have the will - and it sounds like you do - you've go this. You've already started, so well done. Take it slowly - that's the most important thing. Taper will most likely be a bit up and down during periods of decrease. You will have good days and bad. Make a plan - maybe 3 capsules for a week or more, then swap the middle capsule for a slightly weaker Ultracet pill; then go down to 2 Ultracet pills+one capsule etc etc). Stick to your plan, but do not be afraid to stay at 3 pills (or 2 or 1 etc) a bit longer if you need. But also keep focusing on your end goal to keep yourself motivated and determined.
I found it a little difficult to adjust but it was not nearly as bad as I feared. Allow yourself to feel happy that you have got to 3 pills already, build your mental strength and then go down to 2. Slowly, steadily and you'll be fine. Best wishes.