Do I have  Should I change a my job and change to another trade?

I've been thinking of changing jobs for two months. But I haven't made my mind up to change a my job and change to another trade. Here are the advantages and disadvantages below.
Changing jobs:
Advantages:
1. can stay with my family
2. can take care of my baby
Disadvantages:
1. go to the a company I'm totally unfamiliar with
2. maybe I will get lower salary than now.
3. leave all the my friends and colleagues here.

Changing trade: to change from domestic sale to international sale
Advantages:
1. I can do the jobs I've been dreaming of.
2. I can learn new things everyday and can travel around the world
3. Can improve my English
4. maybe I can earn a lot of $ in the future.
Disadvantages:
1. I have to learn from (/to start from) zero.
2. I'll get a low salary in the beginning, and this may last for about 3 to 5 years.
3. Before I'm a manager and managing others, if I change my job, I'll be managed by others.This demands a good state of mind.

I really confused if I have to change jobs and change to another trade.

Introduction

Heeey!I come from Chongqing China!And I'm in the last term of my high school.I want to major in English and Spanish in the at university. 1。I have had a great passion for on learning languages since I was young. 2。And I also like reading novels,giving speeches,drawing and listening to music(especially country music).Though I'm a little fat,I love sports.I joined a table tenis club,a badminton club and a roller skating club.I have a positive and peaceful attitude towards life.I love helping others.I will be very happy to help you with whatever within my stength.So if you want to learn Chinese or  about Chinese culture,I'll be your best choice!By the way,I want to learn English and Spanish.I hope we can help each other!THANKS!

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欢迎！！

1。虽然 大部分这个句子的语法没有问题但是你也可以说：Since I was young, I have had a great passion for learning languages 这是因为我们常常把从句放在前面。

2。 平时不用“and" 在句子的前面。