Its depend on the country and situation. There are many places in the world where it may be unsafe for a woman to travel alone.
Single travel has its perils too -- such as safety concerns, loneliness and the dreaded single supplement. But a little preparation and common sense can save you money and get you through the rough spots Traveling alone gives you the chance to indulge yourself fully.
Because it’s your first time I recommend you to book a travel package through any trusted travel portal for the experience
Here I am listing some trusted travel portals you can pick any one of them
https://www.tripadvisor.in/ about 2 years ago