Help me create a new language ETML (Emotional Text Markup Language)

<sarcasm>Yeah, this will work out for sure!</sarcasm>
<anger>What do you think you are doing!</anger>
<encourage>This is the best idea ever!</encourage>
<happy>I am so glad this is happening.</happy>
<depressed>I probably will not make any $ for this</depressed>
<disappointed>Wish I had thought of this earlier</disappointed>
<sad>I lost my cat.</sad>
<mixed>
    <sad>I lost my cat</sad>
    <happy>My cat hated me</happy>
    <anger>I think my neighbor took my cat</anger>
    <sarcasm>I hope my cat scratches my neighbor</sarcasm>
</mixed>