No need for mentoring on how to avoid plagiarism, i can help you in three simple sentences:
Do not copy somebody's work and present it as if it were your own. This is illegal in most countries, and on most discussion forums. It is also illegal on bitcointalk.

IRL, plagiarism will get you expelled, fired or you can even land in jail... On bitcointalk, the admin is more lenient and just gives you a lifelong ban instead of banning you AND reporting you to the authorities for an in real life punishment.
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Thank you sir @mocacinno for the advice. I will do all that is necessary as adviced above and take into consideration all the 3 you mentioned.