1. Joining a brief language class.
By joining a language course will not only improve your basic skills but also increase your speaking skills. There will be someone that will rectify your mistake(teacher) and peers to practice your skills. Not only will you improve in the basic skills but your confidence will be built up due to the regular practices. There are many online and offline language training centers. Due to the pandemic online courses are highly recommended. One of the reputable educational websites conducted online courses is Multibhashi. They conducted class as an online seminar group class or one to one class. You will be able to learn Hindi from the experienced trainers from here. One more good point is that before enrolling for the classes you can take a demo class and check out everything yourself. Please check out the link for more info: https://classes.multibhashi.com/courses/live-hindi-classes-online
2. Know the dialect to have better conversation skills.
India, as you know is a huge country, the standard dialects and the regional dialects are different according to the region. The standard Hindi is the official language of nine Indian states and it is called the Hindi belt. The states are Bihar, Chhattisgarh, Haryana, Himachal Pradesh, Jharkhand, Madhya Pradesh, Rajasthan, Uttar Pradesh, Uttarakhand and the union territory of Chandigarh and the National Capital Territory of Delhi. There are some slight differences in the tone and way of speaking in these nine states also. So, the fastest way to learn is to know the difference between the dialects and pick up the way of communication.
3. Listen more Hindi.
Keep a habit of listening to Hindi more, there are many great Bollywood movies and songs. Listen to it at least once or twice a day to be more accurate with your speaking skill. It will be better if you can live in a Hindi speaking locality. If this is the case, your communication skills will be much better than the learner who does not live in the non-Hindi speaking locality.
Even though you follow all the rules, you do not practice hard, it will not work. So, to speak fluently and be able to hold a proper conversation, learn the basics and practice it.