How long to wait before trying to DILD: how long do my dreams need to be?

[Pistols]

So I'm still really new to the site but i've been doing my research... I started my dream journal about 5 days ago and have been remembering between 1-4 dreams per night with an average of 2/3. My problem is that my dreams are not particularly long, they are like 3-5 minute scenes and that is it... some have cohesion and lead on with gaps in between. This has led to ask the following questions before changing my mantra's from "I will remember my dreams" to "I will have a lucid dream and realise when I am dreaming" 1. How long should I just focus on recording my dreams before I try and start to DILD? (I already have one dream sign) 2. Do my dream have to be of a certain length or detail to be sufficient enough to attempt becoming lucid? My dreams are very vivid but have been very short... Any advice would be appreciated as I can't wait to start trying to have my first lucid dream Many thanks. Pistols.