Last day in my company. What needs to be added/removed?

Friday will be my last day in my current company. I will have to send an email to everybody working in the company. I have already created the body. Is anything wrong in the sentences? Anything needs to be added or removed? I want to write some different mail.
I don’t want to include name of the persons like senior members, team leader, project manager. I have been working in this company from 2.4 years. I am not happy with company’s attitude about me. I didn’t get a good appraisal. So, I was bored with company and at last got a job in a new company. Anyway, What I have in my mind is written below:

“It is my last day after a wonderful 2+ years with XYZ. I would like to sincerely thank each of you for every experience shared, friendship made, opportunity offered and good times had during this time. I have learned allot from all of you, and will carry what you all have taught me throughout my work life, and will always treasure the memories of being part of this team.

I wish you all the best of luck in the future, and again I thank you for all that you have taught me, all that you have given me, and all that you will always mean to me.

If anyone wants to keep in contact, you can email me on
xyz@gmail.com”

Also I want to add these lines. Will it be OK if I add these? If Yes then how?

When we begin a journey on a Y-shaped path, we feel that great things lie ahead; but, when we come to the split in the path, we feel uncertain, and we ask ourselves which way to go. Eventually, we select one way and move on with it, but at a later point in our journey we may suddenly come to fear that we have made the wrong selection. What if we had chosen the other path? It may have yielded a greater journey! However, it is too late: we must accept that the time for choice is gone, and that we may have failed to choose the right way. ;)..

Sorry for extending length of the details :(