Sorry to hear about lack of results.
Some have reported no results until they noogled 3 or 4 hours a day. Some are just lucky and only require 1 hour a day.
I suggest: Massage your breasts with coconut oil 10 minutes twice a day, every day.
Noogle 4 hours a day if you can find the time and break it up into two sessions, i.e
2 hours morning 2 evening or 2 just after work and 2 late or 1 hour morning and 3 in the evening. Noogle 2 to 5 days a week your breasts need to take a break.
Do not noogle continuously, 15 minutes at a time with a couple of minutes in between to remove and massage your breasts with coconut oil.
Some like to apply heat to warm your breasts during noogling, usually with a hair dryer just before every 15 minute session. Just warm, not uncomfortably hot. Pump til you feel a good pull, but not painful. If you pump too hard and get a bruise, stop immediately for a week to heal.
Drink lots of water.
Hope this helps. Usually 3 months is enough time to decide if a particular program is working.
Tell us more about your routine and also are the cups you are using the right size? Big enough to cover all your breast and your boobs should not reach the end during sessions. Too big and it is really hard to get good suction.