Questions about example sentences with, and the definition and usage of "Thirdly"

Q: Thirdly,I am good at playing paino ,singing ,drawing and making super light clay toys&needle felted toys.All these may bring benifit for this job position.
это звучит нормально?

Q: Thirdly, you must stick to what you are learning or have learned. You have to look at the words from time to time, recite the texts again and again. You should have a proper arrangement, or you may learn it for a long time without rest and the leave it alone also for a long time. By doing so, the time you have spent learning is n______ a waste

This is a question derived from a child’s homework, how would you fill in the blank with the initial letter given? “not” or “nearly”? And how would you understand “so” here?

Q: Thirdly, his romance with a lot of women. I will introduce some examples. Jane Elizabeth, Caroline Lamb, Anne Isabella and Teresa Contessa. They were all famous beautiful women in Britain society. Moreover, He loved his half-sister immorally, and married another woman on purpose to conceal the relationship with her, but the woman realized it and spread bad rumor about him. Then, Byron couldn’t stay in England society and leave there. He moved to another place, where he also womanized. He has confidence in his appearance and his appeal, so he had many relationships with women. это звучит нормально?

Q: Thirdly, let me talk about relatives.
Relatives are most often used to define or identify the noun that precedes them.
When Japanese people encounter a complicated sentence like this,( They selected individuals they believed would accept this role willingly.) they often confuse which relative pronounce they should use. это звучит нормально?

Q: Thirdly, companies pure in millions of dollars for the alcohol or tabacco advertising, thus restricting their advertising can cause economies to stagnate. Instead, the goverment should impose more taxes on these products so that while the revenue increases, a greater number of people also get healthy by reducing unhealthy activities. это звучит нормально?