Research the destination well.Take the bus/flight/train to the destination.Get mentally prepare everything won't go accordingly to your plan. Just enjoy the trek and nature.
You need to go on solo.trip or solo trekking? If solo trekking then it is little complicated. You need basic Knowledge and skills for trekking solo. You should be able to read a map, you should be able to know how to use compass, you should be able to build your own tent and to make your own food. When you are in Mountain and when you are alone you need to take care of many things. You will have to build your tent near a water source. If your trekking above 10000 ft you have to take care of Ams also. And all this efforts will always be worth when you will be in Mountains. Enjoy and trek safe .
Its Perfect if you have done trek before you are all set to go Yes on solo trek you will be making few mistakes but we Humans learn from our Mistakes. Just confirm with the locals at the base about any wildlife movement and always remember about water source. All the best :)
If that's a unknown place, ask locals about the safety measures, Solo trip always ask you to talk to local people and you can probably ask them to join you.
Just get all details where you are travelling last january i was solo travelling to dharamshala and i reached around midnight and didn’t get any transportation for mcleodganj no one is around i walk for around 2-3km n i lost the road somehow managed to get back to dharamshala and one nice man help me to stay in house or else i thought to sleep on a road side with 15kg of luggage in 5degree of temp after travelling for 30hours from gujarat.