Social media can be really helpful or really dangerous. Some groups are strict and full of mycologists. Others are full of people with dangerous ideas and wrong identifications.
A safe way is to start out with a modern regional book which has a list of similar mushrooms and updated view on toxicity. A good book will also tell you which mushrooms are not considered safe to pick because they are impossible or very hard to tell apart from poisonous ones with the naked eye, or when they are too similar but both are fine to eat.
Then you go out to find both the edible mushroom and as many as possible of the similar ones. One or two mushrooms each time. Then when you are completely sure what you are picking you can start eating it and move on to a new delicious mushroom to eat.
A safe way is to start out with a modern regional book which has a list of similar mushrooms and updated view on toxicity. A good book will also tell you which mushrooms are not considered safe to pick because they are impossible or very hard to tell apart from poisonous ones with the naked eye, or when they are too similar but both are fine to eat.
Then you go out to find both the edible mushroom and as many as possible of the similar ones. One or two mushrooms each time. Then when you are completely sure what you are picking you can start eating it and move on to a new delicious mushroom to eat.