But one thing I do: Forgetting what lies behind and straining toward what is ahead, I press on toward the goal to win the prize for which God has called me heavenward in Christ Jesus.

Replace Toxic Action With Terrific Action

Toxic Action is the result of following your toxic feelings. 

When let your anger, depression, anxiety, and other negative feelings get the better of you, you act in a toxic way. You lash out, you do irrational things, you become suicidal at some point, and you act in a destructive way to simple and shallow things.

The antidote to toxic feelings is terrific acting.  

When you change and control your action, you change and control your emotions.  

There are days when you don't feel like doing good, when you are discouraged, and when you just want to explode. The best thing to do to counter these feelings, is to continue to do good anyway.  Smile anyway, show up anyway, be happy anyway.

Easier said than done, but it works (believe me, I'm talking from experience).

Here are some points from Bro. Alvin Barcelona:

Even when you don't feel like doing the right thing, just do the right thing anyway. Sooner or later, you'll begin to like doing it.

Even when you don't feel like getting up from your bed, get up from your bed anyway. Sooner or later, you'll find yourself up, awake, and alive!

Even when you don't feel like going to work, go to work anyway. Sooner or later, you'll find yourself working and loving your work!

Even when you don't feel like loving your husband or your wife, love him / love her anyway. Sooner or later, you'll love loving him, you’ll love loving her.  

Even when you don't feel like praying,  pray anyway. Sooner or later, you'll love praying and you’ll find out prayer Works!

Even when you don't feel like worshipping,  worship anyway. Raise your hands anyway. Sing anyway. Sooner or later, you'll love worshipping God.

Be consistent in doing what is right, even when you feel exactly the opposite. Then you'll be able to change and control your emotions.