When it comes to love, go with your gut feeling. If you think about it too much, you won't be able to go out with anyone.
ご質問ありがとうございます。
"When it comes to love,"=「恋愛に関しては」
"go with your gut feeling."=「直感に従って。」
(又は、*"trust your instinct."*=「自分の本能を信じて」という言い方も出来ます。)
"If you think about it too much,"=「あまり考え過ぎると、」
"you won't be able to go out with anyone."=「誰とも付き合えないよ。」
ご参考までに。