回复：我该回国吗？

try to help you analyse

1. 海归

如你父母关系硬，这类公司很不错:银行类，和证卷类，中信，中稷（有中央党校背境），中石油，中石化，和中海油。

如你父母没有关系,cafe shop seems not bad idea:) (I am thinking to open a cafe shop in my home town,too.)

2. 海混

Since you command English well, you might consider to read for a law degree, specializing in patent applications for companies..., which is a good area for people having solid technical background.