Lincoln had no Constitutional power to free slaves in states that were not in rebellion, or even areas of rebelous states that were under Federal control and where civilian law and Federal Courts were active. You should know that. The EP was a military order and could only be constitutionally applied in areas in rebellion.
Only state governments or an amendment to the Constitution could end slavery in areas loyal to the Union and Lincoln appealed to the governments of MD., KY., MO., and DE to do just that. MD. and MO. did. West Virginia was not admitted as a state (in 1863) until they ended slavery. It was a condition laid dow on thim as a requirement for admission. Lincoln also sponsored and twisted arms to get the 13th Amendment passed by Congress which required 2/3 support of both houses. He signed the bill in early 1865 and sent it to the states for ratification.
As to the EP freeing no slaves, you are wrong. As Union forces gained territory from Jan 1, 1863 (when the EP took effect) until Dec. of 1865 when the states ratified the 13th amendment, over 3 million slaves were freed under the terms of the EP, and nearly 100,000 of those freed slaves joined the Union army. Look up "Juneteenth" in Texas and tell us again that the EP freed no slaves.