Hello there Self,
Today is Monday, first day of the week and this is your second week of your new job. Please do good at your training. Stay focus and don't be too hard on yourself when there's something you won't understand. And don't hesitate to ask question.
Your day didn't start good. But that's okay! I understand that you felt guilty on what said to her and somehow you felt envy but kindly remind yourself that we all have different path in life and in order for you to reach success, you have to work hard for it. It also applies to all the things you want to do, in your dreams and goals in life and everything.
Love life? I know you've been single for quite long time now and you feel lonely at time, you feel bored somehow but don't worry, just stay on loving yourself, knowing your worth and live your single life to the fullest. Go travel if you want to, date and pamper yourself, read books and buy gifts for yourself. You'll meet the right person for you in the right time. As what in the bible said: Isaiah 60:22 - "When the time is right, I, the Lord, will make it happen."
Cheer up and forgive yourself what mistakes you've done. Learn from it and take it as a lesson.
Thank you self :-)