Trekking in Nepal plan “A” it depends on your own skills and whether you want carries the weight and kinds of stuff. You can ask yourself primarily some questions that trekking in Nepal Himalayas is interesting or not? Are you healthy and vision ably good safe including carrying bag pack?
If not, plan “B” would be to have guide/porter for you. Do you have some sort of general backpacking, camping, up steep mountains, hiking, outdoors kind of experience? It does not mandatory but it helps for more experience for better in the mountains. Another big factor is weather conditions up there mountains with snow. You should be attended with weather whether you can handle yourself or not the trip in such a bad weather? Probably, you would not know the local weather which could know guide/porter. This is why better not to handle trekking in Nepal yourself for once a life value.
There are next two steps to be ready for trekking in Nepal Himalaya. That is choosing a backpack and footwear like trekking/hiking shoes. Suggest you trekking gears not to miss, trekking in Nepal to have sunglasses, cream, and padding of blisters for long hiking. You also should be ready for rain so far. Regarding sleeping bag, it is better to have although lodge provides you a blanket. You can use it on the top of your sleeping bag. You do not carry a lot of food with you but better to have some snacks because on the high mountain going to be higher prices. And no need to carry unnecessary pieces of stuff which are not using during the trekking. Those things can store at the hotel, it’s free of cost. You can take your mobile phone because somewhere available network connections like WIFI or use mobile data to use it.
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