Ohhhh personal tips lol. Well I imagine the methodology must differ for each person but for me it's like I can picture the scene happening in my mind vividly, it's like a movie playing in my mind, and for me writing is just figuring out how to convey that in text form. If I can get really in the zone the words will just flow for hours. So try and make the scene play in your mind, try to see it visually and then try to convert that into words.