I feel like no one ever taught me how to manage my emotions-how do I start now?

This is skill many people were never taught and need to learn on their own. The first step is to be able to identify how you are feeling. Very often people will be anxious and not even realize it for hours, days, or even weeks. Learn to spot the physical and mental signs of all your emotions. Shaking, sweating, not wanting to go outside, having very little energy, having too much energy, etc. Once you associate all of these with labels, then you can tell yourself what emotion you are feeling (for now, let's say anxious.) Step two, ask yourself what got you feeling this way. "What is making me anxious." Identify that thing. Step 3, address it. The more you do this, the faster and easier it will become. You can't manage your emotions until you become familiar with them, so start keeping a close eye, and get to know yourself!

I think a good way to begin managing your emotions is to recognize how to identify them. When you are feeling conflicted with what you are feeling, or confused, you can start by free-writing everthing that comes in your head. Sometimes getting ideas out on paper can help your mind to focus.

Talk to someone. Let them know how you feel. Let it all out. Cry, laugh, smile, frown. Just reach out to someone.

Only life can teach you. People can give you some hints but there's no rule book for achieving emotion management. Managing emotions comes from you becoming self-aware of your emotions in a given fleeting moment; to question yourself on the validity and reason behind such emotion. The challenge here is that when you're in an emotional outbreak your reason tends to fade and sometimes it's hard to get it back. So the trick is to reason WITH your emotions, instead of sticking to one side of the coin. The balance is sometimes hard to achieve, only with practice you'll get there. Some people are more prone to react and only then think. To finish off, I believe the first step would be not to hold your emotions in but since you're at it think about the situation while you're letting it out and question yourself.

Breathing is really great. Might sound silly, but when you're facing a tough situation where one emotion or another seems to be getting unmanageable then it helps to just take a moment and do some deep breathing. It slows everything down and gives you an opportunity to really think about what's going on.

Try to reflect your behaviour and how Society wants you to react. Try to think about "what would be the best in this Situation?" "would i be ok with the outcome"?

dont put stress on yourself and you really just gotta take in one day at a time, dont put a time limit on things instead write down the situation you were in when you felt scared, nervous, angry, etc. so that way you can look back and change how you reacted

Its a self teaching process. Many steps can guide you through this. If you are religious of any type, praying is one step. The second one, you could start doing some calming things of any sorts.

Reflect on your own emotions. See what things upset you, anger you, make you happy ect. Compare those reactions to how you'd like them to be. It will take time and patience. Be kind to yourself, setbacks may happen but every step is progress and you should be proud of that.

Managing your emotions is a difficult, sometimes struggle-ridden journey, but its necessary in light of attaining, maintaining, and pursuing the utmost containment, the utmost health and happiness. You must first acknowledge that such emotions, such confusions exists, that there are things that are troubling you--things standing in your way, blocking you from feeling stress-free. Next, you must allow yourself to feel these kinds of emotions, to express these emotions, to share them with those you are close with, to write them down, to sing them, to think about how they truly make you feel: GET THEM OUT. The key is to NOT BOTTLE THEM UP, that is destructive, unhealthy, and ultimately corrosive to your livelihood, to your wellbeing; one must always come to terms with his or her emotions, his or her angers, frustrations, misjudgments, confusions, anxieties, and much more; feelings so many emotions at one time is part of life, as we live in moments of glory, and moments of chaos. With this in mind, it is important and imperative to recognize these sorts of emotions, to recognize times of distress and discomfort, to recognize that you may be too overwhelmed to think clearly; the next step deals with addressing these emotions and expressing them, LETTING THEM OUT, and allowing yourself to be RELIEVED, to be CLEANSED and freed. After this point, you must take the time to move on, to keep a confident and optimistic perspective for the future; take it one step at a time and don't panic. Breathe, express, and relax.