First I would like to congratulate you on this beautiful decision.🤗🐯 As I have started myself traveling from HP. So I can share my own experience and plan for this trip. If you have never been to Himachal yet then you should start from Shimla in my opinion. You can go to Narkanda and Kufri from there. On the way to Shimla, you can enjoy Timber Trial and some adventuring sports in Kufri. There is a zoo also in Kufri and horse ride is also good. Then you can go to Kullu Manali side and the best stop Kasol where you do camping and Trekking as a famous one Kheerganga trek, also Parvati river is a worthy spot if you also want to enjoy your own company. And a favorite hippy spot Malana village is always shone for its unique culture. Then you can go to Dharamsala and Dalhousie also. I hope you understand it's hard to express things in worda. Looking forward if it helps you. Feel free to contact. God bless you. We all are one. Hari OM!!!!