Welcome, like Mar says, I was one of the lucky ones, I had end stage cirrhosis, got treatment here and it has melted away completely. This is not common but improvement is very common- and I was F4 for 15 years, so at F3 you still have plenty of time to rebuild your liver.
You will see the general advice on lots of posts- take the meds at same time every day, with food, and drink plenty of water while on treatment. I have seen 1000's recover now, always nice to see someone about to start treatment/kill the virus. I felt way better, pretty much straight away, in a few days, but I was getting sick so the inflammation going down made a big difference, fast. For some people the improvement is more gradual.
Please check in every week or so, love to hear how you are doing.
Genotype 3 30 years, 2x treatment interferon/ribavirin non responder. Cirrhosis 17 years. Fibroscan, decompensating, 40 down to 22 by 29/3/16- now down to 6.5, normal, no cirrhosis. Started Buyers Club Sof/Dac 14 Nov 15. SVR 12 29/0716