First and foremost, I would decide what color of metal you fancy the most. Many people try to follow trends or the advice of others instead of choosing the metal that he/she likes and is most flattering. If you don't listen to this recommendation, you may regret it unless you like mixing metals.
Secondly, I would try to find which type of jewelry you love the most (earrings, necklaces, and so on). For example, if you love necklaces, then I would recommend finding a classic pendant in the metal of your choice.
Furthermore, decide if you are a diamond lover or not. If you are, educate yourself on identifying quality diamonds. If you think that they are a waste of money or have ethical concerns, don't let anyone convince you otherwise.
It's also important to decide if you value big design houses, mall jewelers, independent designers, or custom jewelers. This is where I see most people go wrong. Don't buy an inspired by piece if you absolutely love the design of Tiffany for instance.
I will give you a personal example:
I have always loved the DBTY necklace from Tiffany. For years, I pined over it! [emoji24] Eventually, I bought a .25 carat diamond necklace in white gold from a very reputable jeweler. I love that necklace to death, and the diamond shines bright! But I recently purchased a .14 carat DBTY necklace in my preferred metal of yellow gold from Tiffany! [emoji7] My heart skips a beat just thinking about it!
Don't waste your money on costume jewelry and overly trendy designs. Save for your dream items rather than buying multiple inexpensive items!
Most importantly, take your time with your purchases! Your heart will sing for the right ones! [emoji173]️