You can find many free level tests online. Here’s one from British Council, for example: http://learnenglish.britishcouncil.org/en/content For a more formal assessment of your English level, you might search in your area for a local IELTS or TOEFL test center.
Do you have a little time to study every day? We have new lessons 7 days a week, which is great if you’re looking for a consistent study plan. Try to go through each day’s lesson / quizzes and leave a comment on the lesson when you’ve finished. The next day, before looking at a new lesson, review your notes from the previous lesson. This will help the new words stick. If you follow us on social media, we also do a weekly Wednesday grammar question and Sunday discussion question. Wishing you many hours of happy studying! :)