Here you can find links to resources available online on several media
Start by learning the basics: pronunciation, vocabulary, grammar. Then you can start using authentic materials, available on the radio, TV, newspapers or the Internet. If you live in a Portuguese speaking country, they are also everywhere around you: supermarket labels, street signs, tickets, ATM machines. Nowadays there are also good professional materials in European Portuguese, such as podcasts, courses, ebooks or textbooks. To keep your motivation use all of them.
The type of authentic materials you'll use will depend on your level, but even at a beginner's level you may start to learn from them. For example, understanding restaurant menus will be very helpful if you intend to go to restaurants. The same applies to public signs, timetables, websites, TV or radio ads. Learning with these resources has the advantage of putting you in contact with the real language used in everyday situations and also giving you some cultural background for your learning. There are also TV programmes that teach you the language and, of course, songs are a very important resource you can listen to again and again until you can sing the song yourself. At a more advanced level, you can start enjoying other types of materials like films, series, news, documentaries, chat shows and newspapers or books.
From websites to apps that you can install on your mobile phone, there are a lot of resources that you can use to learn on your own or interact with other learners. Online dictionaries, translation in context, pronunciation models and examples, spellcheckers, you name it!
Social media can also be a valuable help, in groups you can interact with others, ask questions, have your questions answered, follow useful suggestions or find out about resources you had never heard of before.
A language partner should be a native speaker of the language you are learning; in exchange, you teach your partner your mother language. That way, both can gain from the experience in a fun, stress-free experience.
Would you prefer taking lessons with a teacher? If so, contact me for details.