A disclaimer I do not promise that you will always be happy; no one can be happy all the time because there are things far greater than us that we cannot control, things like death. Sadly, death is one of our biggest enemy and whenever it sets foot somewhere it can only bring pain, tears, and great grief.
These small steps although they can appear easy are the hardest things that anyone can manage to do at all times because we have a lot of emotions, anger, greed, grudges but those steps can help get rid of all of that.
1. find your energy source. That can be keeping a spiritually based life for instance personally if I don't pray, meditate and consult the bible my life would be in total chaos. I admit that not everyone is spiritual and some people haven't got the chance to know God personally, I will always advise that you learn to know God for yourself if you haven't because he is our only hope and the only savior of the human race. One other thing that can be a great energy source is exercising it is scientifically proven that exercising can make someone truly happy if they are persistent and passionate about it. Exercising is good for your body and overall health so that can be something to consider if you want to be happier. Other things can be reading, writing, traveling, hanging out with friends and family, spending time alone because there are people who need to be alone to recharge their social battery, and depriving them of that would be crucial.
2. Move on. I know that it is easier said than done but those 2 words hold a lot more power than we think, you need to move on from those who caused you pain because your happiness is worth way more. you need to move on because holding to the grudge will only make you angry, miserable and it's like bringing the knife back in the wound again. You have to let the wound heal because if you don't at this point you are hurting yourself. Once you move on I can assure you that you will feel a lot happier and free from holding to this heavy baggage that was never yours to carry. Anyone who chooses to hurt you has a problem with themselves and you're just collateral damage.
3. watch out for yourself. Be careful with this step because one can become a narcissist and only care for themselves. You always need to make sure that you're not hurting anyone for the sake of your own happiness. You need to protect your heart from people trying to break it, staying away from danger because if you don't watch out for yourself who will? you need to make sure that you are not putting yourself in danger in any way possible, it could be from smoking cigarettes which is bad for your lungs, not sleeping enough which can be lethal, not eating enough, and not taking care of yourself. Take care of yourself and you should be a lot happier.
4. Take care of your responsibilities. Make sure you are not in debt, pay your bills and take care of your family. If you don't pay your bills you will be in a lot of debt, risk of being homeless, risk of going to jail, being bankrupt and those things can only make you miserable; take care of your responsibilities to live a less stressful and happier life.
5. seek help. This step includes going to the Doctor to make sure you're healthy or to know if you have a problem because knowing that you have a problem early can help save your life. seeking help from a psychologist if you're not in the right place mentally and there is no shame in that. Oftentimes people think that going to see a therapist means that someone has to be crazy or suicidal it is far from that it is to make sure you get the help that you need mentally because if you're sick mentally your whole body will follow and you will be a walking ticking time bomb. Seek help for a happier life.