Honestly I like this functional amd pretty handy protemos system for freelance translators https://protemos.com/tms-for-freelance-translators.html I have been using for a year or so. This is an excellent program for doing business in the field of translation and has a wide range of functions. It is not only convenient but also effective. So, simply give it a try
Every translator is different, but many use a CAT (computer-assisted translation) tool to improve their productivity. Personally, I find there’s a negative correlation between tool use and knowledge/skill, so I don’t use any tools at all apart from Microsoft Office, the Chrome web browser, and a cheap pocket calculator and stopwatch (to track my words/income per hour).