I think I have achieved some of my goals over the last year which has made it a good one.
I had a great year this year because I accomplished some of my goals.
どちらも「いくつかの目標を達成して良い1年でした。」という意味です。
1) I think I have achieved some of my goals over the last year which has made it a good one.
2) I had a great year this year because I accomplished some of my goals.
「目標を達成する」は
achieve some of one's goals
accomplish some of one's goals
と言えます。
I had a great year this year. で「良い一年でした。」という言い方です。
ご参考になれば幸いです！
日本 
