meat eaters who turned vegetarians??

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Hello back from a long break because i wanted to see if i could spread my wings without mfp, but i decided to go towards a new approach with my dieting and decided to come back to the community and ask for a little assistance.
im a new vegetarian no meat at all im going on day 3 lol. Is there any vegetarians who were once meat eaters and seen any good results from cutting meat out of there diet?? whats are some foods and appetizers to eat so i dont quite lose my cool with this new transition? will my body start to realize that meat is missing from my diet? if you have any advice please help