i went there 3 times last year i had been there 3 times last

直接用I went there 3 times last year.即可表达你的意思.流水账式的表达,跟说昨天我吃过牛肉,猪肉,羊肉...一样.不需要去阐明个什么东西.
如果你用I have been there 3 times.直接表示,我去过那个地方三次了.之所以说这句话,更像是有人在问你有没有去过那里,你强调次数.都去过3词了.
i had been there 3 times last year.单独来说没有意义,比如加上 I had been there 3 times last year before the park was open.假设你说的there 就是 the park.这样,过去完成时had been 比过去式 was open在时间点上靠前一格,就是说这个公园开起来之前我就已经去过3次了.即使你不说后边的句子,别人听到了还是会去期待你到底是在比什么.