Emotion detection from text I am doing a project where I will have to detect emotions from reviews gained by users (through comments). My task is to classify the comments in at least 5 types of emotions that is: happiness, satisfy/unsatisfied, disappointment, sadness, joy. Can I find an already existing model trained for emotion analysis where I can analyze the emotions in each comment. My output needs to give whether the comment is happy or sad/angry etc. I am willing to use the RNN technique. Can someone please help me with my project? Thank you.
There are certain pre-trained models available regarding sentiment analysis or emotion analysis like textblob , flair and deepmoji. Here the link to the in the medium -> 
https://medium.com/@b.terryjack/nlp-pre-trained-sentiment-analysis-1eb52a9d742c

But if you have your own set of emotions for which you want to classify, then the best way would be to gather data with labels (the emotions) and train a model from scratch.