@Krall_J_Rnlav
Firstly, for your first month in Eve, casually trying things out and learning the game, 60m ISK is a reasonable sum to have accumulated. Be vary wary of blowing it all on an expensive ship that you don’t have the skills to fit a good defense and weapons to. Loosing it in a mission or through a silly mistake is a heck of a setback.
The basic Empire cruisers will handle level 2 security missions. The basic Exploration Frigates, such as the Magnate, with Frigate IV trained are quite capable. And cheap.
The rule is not “don’t fly something you can’t afford to loose” but “don’t fly something you can’t easily afford to replace”.
So, good sources of income? [I’ll tell you later why that is the wrong question.]
Exploration, especially wormholes, will give a good (and exciting) income - use cheap ships (you will be killed if you are caught) and remember the trick is sliding in, looting the hole and getting out. Use D-Scan and remember to treat everyone as hostile. If you can afford it, the Astero is a cracking little exploration ship; but that’s over your budget and carries a big “I’ve probably got a valuable cargo, mug me” sign on it. And you’ll want to fit a covert cloak which is a reasonable bit of skill training.
Manufacturing: at your likely skill level it’s going to be a slow steady income rather than mind-blowing. But for a lot of items (ammunition/drones) then it’s set the job running, do something more interesting, deliver job and sell. You can reasonably expect a 20% profit or so, but they are low value items. But it adds up. https://www.fuzzwork.co.uk/blueprint/ is your friend. If you don’t want a lot of effort, buy/manufacture/sell at the hub. Always research ME on your Blueprints, it’s worth it. At the moment, Multifrequency S at Amarr can turn you a 25% profit - a thousand will take a couple of days to cook, and turn a half-mill profit. Slow, easy, steady. Specialist manufacturing is where the money is, but that’s skill intensive. (I’m a specialist manufacturer).
Mission running: yep, Level 4 with a high skill ship is good earning. But it’ll take time to get there - both to train for and afford to fit a good ship (when someone says “Nightmare” what they are saying is 500m ISK + 200m ISK fittings, and a few months skill training for an Omega clone) - and you’ll need to work standings up for one of the NPC corporations to gain access to the agents - you need +5 standing or better.
Mining: I like mining, but not for the income (the odd 5-10m/hr is nice), but because it’s relaxing. Really. You’ll have a Venture from the tutorials, but the steady income is when you are in barges (Omega), but in high-sec it’s not a huge profit.
Trading, can be very profitable - but you need market knowledge and a good lump of starting capital. As you probably realise, 60m ISK isn’t a big pot of gold.
Most importantly, and I can not emphasis this enough, Eve is not a game you win. ISK is not a score or measure of success. Eve is something to enjoy living in, you don’t have to be Omega, you don’t have to move to Null and join a corporation. Don’t do something because it makes ISK or because someone says “this is what you have to do to be good in Eve”, do it because you enjoy it. Exploration in dangerous areas can be fun. Finding new things is exciting, working with a group of people on a common task (whatever that may be, there are researchers, explorers, mercenaries, role players) is good, flying out and killing pirates for the Empire, ninja-mining in someone else’s patch is a hoot (not hugely profitable, but the cat and mouse is fun), a million and one things to enjoy. Chose what you enjoy and work out how to make a good enough income from it. Don’t turn Eve into a job.
If you find yourself around Amarr, look me up. I can bring you along on some of the higher level missions if you want a taster - you won’t need a big expensive ship for that.