You'll be fine honestly. I bloody love tantrums.
The trick is to learn about them, get a decent perspective on them, then welcome them with a game plan so you feel in control.
Tantrums are a natural part of your child's growing maturity, they're learning how to manage and cope with very intense emotions in the best way they know, with the skills and experience they have. They're not doing it to be 'bad' or 'naughty', and they're not giving you a hard time. They're having a hard time. Tantrums are when they need you the most. Letting your calmness be contagious and maintaining a loving and accepting approach is the best way to defuse them. Shouting at them, getting arsey back, just adds a lot of fuel to the fire.
When it comes to toddler behaviour the ingredients are: validation, and boundaries. Not shaming them, or folding like a deck of cards, or making empty threats to frighten them into submission. Example... it's time to leave the park. They don't want to. You give them a two minute warning. When it's time to leave, you leave. They might be upset, they might flail, they might not walk out calmly, but you leave, even if you have to carry them out. Next time, they realise you mean what you say, and over time they start to accept the inevitable next step which is that what mum/dad says is going to happen happens.
Even when toddlers think they want something, if it's something you've said isn't happening and then you give in it freaks them out. They might enjoy that extra biscuit but their little brains are panicking 'wait... what? Is this parent not in control? Am I not safe/secure?'. The odd flex is fine but when parents let their child have whatever they want as long as they kick off enough every time that's when things start to get really tough because they now call the shots and you're beholden to them which isn't pleasant or practical.
Decide on your non-negotiables and stick to them. For me, hygiene and health was non-negotiable. If a nappy needed changing, it was being changed, regardless of how big the tantrum was. Same with leaving the shop. The approach 'I know you're upset sweetpea, I know you're sad. We're doing this thing. I'm here for you, I love you' is honestly the key. Don't give in, don't show weakness, just love them through it and try to think the best of them even when they're being a handful.