Jupiter will be of not much support in the first half as it shares a role with the Sun in ruling the law, the legal system, powerful people, and government representatives.

Problems with the law are one adverse effect of several Jupiter transits and since JN Bhasin says that Jupiter in Gemini being opposite from sign of Sagittarius so troubles due to law will be there specifically when it transits from 3rd house.

Doing Purush Suktam as well as Gayatri Hawan is essential in this transit.

While it gradually goes in Cancer navansh in the second half, the situation gets better but then lot of corrections are required to be done spiritually in life too.

Jupiter transiting in Gemini so you should not take the matters ruled by that house at face value and then everything will work out very well, but you should always make sure that you aren’t overdoing it.