I started with the bifocals about 2 yrs ago. You will get more used to them. For tying I found the bifocal range too narrow. An inexpensive set of off the shelf reading glasses works better for me. I had a special mid range bifocal made up for the office/computer that is ideal.
A good light makes a big difference, make sure your light is very bright to get a larger focal range.
Unfortunatly age is not kind to our eyesight.